AGCO LT90A Tractor 110 hp Features, Specs, and Performance Overview
Production & Identification
You can identify the AGCO LT90A tractor by its distinct model number, factory origin, and unique features. Understanding these details ensures you know exactly what to look for when evaluating this model.
Manufacturer / Brand
The AGCO LT90A was built by AGCO Corporation. AGCO is a global leader in agricultural equipment and is known for consistent tractor performance and support.
AGCO has owned several brands, but the LT Series tractors, including the LT90A, were sold under the AGCO name, not under other AGCO-owned brands such as Massey Ferguson or Challenger.
You will see AGCO as the official logo and brand on the tractor’s body, grille, and documentation.
The LT Series, including the LT75 and LT90, helped expand AGCO’s presence in the utility tractor sector, particularly for small to mid-size farm needs. AGCO combines an American engineering approach with input from European designs, offering versatility in many agricultural roles.
Model Number / Series
The model number for this tractor is LT90A. This clearly separates it from other similar models, such as the LT75 or the regular LT90.
The LT90A belongs to the LT Series of utility tractors from AGCO. The “A” at the end of the model name stands for enhanced features and updated styling compared to earlier LT models.
Within the LT Series lineup, you will find related models such as the LT75, LT85, LT95, and others. The LT90A is usually positioned near the top of the series for power, with 110 hp.
The LT90A shares core design features with the rest of the series but has specific technology and engine upgrades.
Factory of Manufacture
The AGCO LT90A was produced at the Beauvais factory in France. This facility is known for its advanced assembly lines and strict quality standards.
Beauvais has produced many tractors for European and North American markets.
The LT Series, including the LT90A, benefited from this factory’s technical advances, including its heavy emphasis on precision manufacturing.
The plant uses modern machining and robotics to ensure that the tractors meet global reliability standards. AGCO’s decision to assemble the LT Series in Beauvais was influenced by the factory’s experience building mid-range tractors for both export and local European farms.
Years Produced
Production of the AGCO LT90A started in the mid-2000s. Most sources list its introduction around 2004 or 2005, though it may vary by country.
The LT90A remained in production for several years as part of AGCO’s utility tractor lineup.
It was offered until approximately 2008 or 2009 when AGCO updated or replaced the series.
During its run, the LT90A was marketed as a reliable, high-powered utility tractor suited for various tasks such as tillage, haying, and loader work. You might encounter both new and used units from this time period, with later models usually incorporating modest improvements in controls or emissions.
Original List Price (Launch Year)
At its launch, the AGCO LT90A was priced in the mid-range for tractors of its size and features. In the United States, the typical list price started at around $50,000 to $60,000 USD, depending on options like four-wheel drive, cab style, and hydraulic packages.
This price placed it competitively among other utility tractors of similar horsepower.
The LT90A’s value came from its combination of a powerful 110 hp Sisu diesel engine, durable construction, and a recognized AGCO warranty.
Optional equipment and regional taxes could affect the final sales price. The launch price made the LT90A attractive to mid-size farms looking to upgrade from smaller, lower horsepower tractors to something more capable.
Serial-Number Location
To find the serial number on an AGCO LT90A, you should check the frame of the tractor, specifically on the right-hand side below the engine area.
AGCO commonly placed the metal serial-number plate or stamped marking in this area for easy access. The serial number is vital for ordering correct replacement parts, verifying the year of manufacture, and confirming authenticity.
If the plate is missing or covered with dirt, gently clean the frame near the engine and front axle to expose it. You can also check the inside cover of the operator’s manual, where the dealer may have recorded the number at the time of sale.
Table: AGCO LT90A Production & Identification Details
| Topic | Details |
|---|---|
| Manufacturer / Brand | AGCO (not MF or Challenger, strictly AGCO branded) |
| Model Number / Series | LT90A, part of LT Series (includes LT75, LT90, etc.) |
| Factory of Manufacture | Beauvais, France |
| Years Produced | 2004–2009 (approximate, check region for specifics) |
| Original List Price | $50,000–$60,000 USD (config, year, and market may affect final cost) |
| Serial-Number Location | Right side of tractor frame, below engine area |
Engine Specifications
The AGCO LT90A tractor is powered by a robust Sisu diesel engine designed for reliability and performance. This engine blends 110 hp output with advanced cooling and fuel systems for steady operation under demanding conditions.
Engine Make & Model
The AGCO LT90A is equipped with a Sisu engine, a brand known for producing durable and efficient diesel engines for agricultural equipment. The specific model in this tractor is a Sisu 4.4-liter, 4-cylinder diesel.
This engine’s configuration balances power and fuel economy, allowing you to handle large workloads with fewer maintenance issues. Sisu engines are popular in farm machinery due to their long service life and consistent performance in variable conditions.
The engine features direct fuel injection technology. This method improves combustion efficiency and lowers fuel consumption.
The engine is designed to start smoothly in different weather, which is helpful for year-round farming.
Fuel Type & Emissions Tier
You will find the AGCO LT90A uses diesel fuel as its sole energy source. The tractor’s diesel engine offers a good blend of power and long operating hours between fuel stops, crucial for large agricultural tasks.
The emissions tier for this model generally follows Tier II standards, which were common for engines of this era. These standards help reduce harmful exhaust gases, including nitrogen oxides and particulate matter, though the engine may not meet newer, stricter tiers.
A large 34.3-gallon (130-liter) fuel tank ensures that you can work for extended hours without frequent refueling. Diesel engines like this deliver higher torque at lower RPM, which is important for tough farm work.
Cylinders / Displacement
The Sisu engine in the LT90A features a 4-cylinder, inline setup. Inline cylinders offer smoother operation and better balance compared to V-type configurations in some tractors.
The displacement measures 4.4 liters (4,400 cubic centimeters or 268.3 cubic inches). Displacement refers to the total volume swept by all pistons inside the cylinders.
Greater displacement often means more power and torque, providing better pull and heavy lifting capability. This design lets you use heavy implements and attachments without overloading the engine.
The 4-cylinder setup combines efficient combustion with solid torque output, maximizing both performance and fuel use.
Rated Horsepower (Gross & Net)
Horsepower ratings help you know how much work the tractor can do. The AGCO LT90A produces 110.0 hp at the engine (gross rating), which is the measurement before power losses from accessories and cooling fans.
The tested and claimed PTO (Power Take-Off) horsepower is around 90 hp (67 kW), while some test results show up to 93.74 hp at the PTO. The PTO number tells you how much usable power is available for running implements like mowers, balers, or tillers.
While the gross engine horsepower is 110 hp, with net ratings slightly lower due to losses, you can expect consistent output across a range of field tasks. This level of power lets you tackle demanding work while running multiple attachments.
Peak Torque (Nm @ rpm)
Peak torque is the maximum rotational force the engine can deliver. For the Sisu 4.4L in the LT90A, the peak torque is not often specified in general manuals, but similar engines in this range provide torque between 400 to 450 Nm at moderate engine speeds (usually around 1,400 to 1,800 rpm).
High torque at lower RPM makes it easier to pull equipment or drive through tough soil. You can maintain speed and power without revving the engine too high, which also saves fuel and reduces engine wear.
The Sisu engine’s design allows it to hold torque across a wide RPM band. This means your tractor won’t bog down under changing loads in the field.
Compression Ratio
The compression ratio is a key part of diesel engine performance and efficiency. On the Sisu 4.4L, the compression ratio is typically about 17.5:1.
This high ratio means more fuel-air mixture is compressed in the cylinder, leading to better ignition and power output. A high compression ratio increases efficiency and torque.
This allows diesel engines to extract more energy per unit of fuel compared to gasoline engines. The benefit for you is consistent starts in different climates and more power when you need it most, including cold weather and heavy loads.
Cooling System & Capacity
The AGCO LT90A uses a liquid-cooled system to manage engine temperatures. Liquid cooling works by circulating coolant around the engine block and cylinder head, transferring heat away quickly.
Proper cooling keeps the engine at safe operating temperatures, preventing overheating during long or heavy use. This system can handle extended periods of hard work without overheating risks, so you spend less time worrying about downtime.
The coolant capacity for the Sisu 4.4L engine is sizable, typically around 13.2 quarts (12.5 liters). Proper coolant checks and maintenance ensure peak performance and engine longevity.
| Specification | Details |
|---|---|
| Engine Make & Model | Sisu 4.4L, 4-cylinder diesel |
| Fuel Type | Diesel |
| Emissions Tier | Tier II (typical for model era) |
| Cylinders | 4, Inline |
| Displacement | 4.4 liters (268.3 cubic inches) |
| Rated HP (Gross/Net) | 110.0 hp (gross), Approx. 90-93.74 hp (PTO tested/claimed) |
| Peak Torque | 400-450 Nm @ 1,400–1,800 rpm (estimated) |
| Compression Ratio | 17.5:1 |
| Cooling System | Liquid-cooled |
| Coolant Capacity | 13.2 quarts (12.5 liters) |
| Fuel Tank Capacity | 34.3 gallons (130 liters) |
Power Take-Off (PTO)
The AGCO LT90A tractor is equipped with a strong power take-off system designed for field performance and adaptability. Its PTO features provide flexibility and efficient operation for tasks requiring various power levels or implement compatibility.
Claimed PTO Horsepower
The AGCO LT90A claims a PTO horsepower of about 85 hp, which is a substantial amount for this 110 hp tractor. This means you can operate a wide range of implements such as rotary mowers, balers, and tillers without stressing the tractor’s engine or PTO system.
You should note that the PTO horsepower is typically slightly less than the engine’s gross horsepower. This is due to power lost through the transmission and PTO mechanisms.
The 85 hp output ensures reliable power delivery for most medium- to heavy-duty PTO-driven equipment. PTO horsepower is an important figure to consider when matching your tractor with the right implements.
Staying within this limit helps maximize the service life of both your tractor and the attachments used.
PTO Type (Independent / Live / Economy)
The AGCO LT90A uses an independent PTO system. This design allows you to engage or disengage the PTO regardless of the tractor’s drive status.
You do not need to press the clutch or stop the tractor to operate the PTO. This provides convenience and safety, especially when frequently starting or stopping the power to implements.
An independent PTO is superior to a live PTO for ease of use and control. On the LT90A, you can operate attachments like augers or mowers more smoothly, as you have complete control over when to apply PTO power.
The tractor’s PTO design improves field efficiency, especially for tasks that require stopping the implement while keeping the tractor moving. Some independent PTO systems may offer an economy mode, letting you run implements at a reduced engine rpm to save fuel.
The LT90A also supports this, making light PTO work more economical and less taxing on the engine.
PTO Speeds (540 / 1 000 rpm)
You get multiple PTO speed options: 540 and 1,000 rpm, plus economy settings. Standard 540 rpm is activated at an engine speed of 1,980 rpm on this model.
The 1,000 rpm PTO is available for larger or higher-speed attachments and is engaged at an engine speed of around 2,000 rpm. There are also economy settings like 540E at a lower rpm (such as 1,550), which helps reduce fuel use during jobs that don’t need full engine power.
Having 540 and 1,000 rpm PTOs allows compatibility with a wide range of implements. Many smaller implements require 540 rpm, while larger equipment, like big mowers or pumps, often use the 1,000 rpm setting.
The speed selections are clearly labeled, and shifting between them is straightforward. Operation is simple and effective.
| PTO Feature | Specification / Detail |
|---|---|
| Claimed PTO Horsepower | 85 hp |
| PTO Type | Independent |
| PTO Operation | Can engage/disengage without clutching or stopping tractor |
| Standard PTO Speeds | 540 rpm @ 1,980 engine rpm; 1,000 rpm @ 2,000 rpm |
| Economy PTO Speeds | 540E @ 1,550 engine rpm; 1,000E (if equipped) |
| Implement Compatibility | Works with a wide range of 540 or 1,000 rpm implements |
| Benefits | Flexibility, efficiency, fuel savings with economy modes |
Transmission & Drivetrain
The AGCO LT90A comes with a durable drivetrain and several key features made for field and transport work. The focus is on power delivery, gear choices, and reliable traction.
Transmission Type (Syncro, Powershift, CVT, HST)
The LT90A uses a full powershift transmission. This lets you change gears under load without using the clutch.
Powershift transmissions are popular for higher horsepower tractors like this one. You can shift on the go, which is helpful for both field and road applications.
There is no continuously variable transmission (CVT) or hydrostatic transmission (HST) on this model. Syncro transmissions, which require clutching between several or all gears, are not found on the LT90A either.
With powershift, you get smoother operation and less operator fatigue during long hours. This transmission is robust and designed to handle the tractor’s 110 horsepower diesel engine.
It makes tasks like baling, tilling, and heavy hauling more efficient.
Number of Gears / Ranges
The LT90A offers multiple gears to cover different speeds and workload needs. With a full powershift, you typically get a high number of forward and reverse gears.
You will find transmissions with 16 or more forward gears, and several reverse gears. The gears are spaced to give you fine control over speed and torque.
That means you can select just the right gear for planting, spraying, or transport. The range lever lets you shift between different speed ranges, often low, medium, and high, to match various field conditions or tasks.
This versatility ensures you always have the power and speed you need when and where you need it.
Top Transport Speed
Top transport speed is important for moving between fields or road use. On the AGCO LT90A, you get a top speed of about 25-30 km/h (15-19 mph).
Powershift transmission allows you to reach this speed smoothly. The tractor’s engine and gearing provide good acceleration and stable handling even at maximum speed.
Drive (2WD / 4WD / AWD)
You can find the LT90A in both 2WD (two-wheel drive) and 4WD (four-wheel drive) models. The 4WD version is better for traction in tough conditions, such as muddy fields or when pulling heavy implements.
4WD gives you more pulling power and helps prevent getting stuck. It’s especially useful for row cropping, plowing, and heavy field work.
The 2WD version is lighter and may have a tighter turning radius. This is useful for some lighter tasks or for operating mainly on dry, flat land.
Differential-Lock & Final Drives
The differential-lock on the LT90A is designed to boost traction when one rear wheel starts slipping. When you activate the differential-lock, both rear wheels turn at the same speed, giving you extra grip in tough spots.
The final drives on this tractor are built strong to handle the engine’s torque. The LT90A often uses inboard planetary final drives.
This design spreads the load more evenly and reduces stress on the outer axle, lowering maintenance needs. Planetary drives are efficient for tractors with higher horsepower like the LT90A, as they help minimize driveline strain during tough field work.
| Component | Details |
|---|---|
| Transmission Type | Full Powershift; shift on the go, no need for clutch |
| Number of Gears/Ranges | 16+ forward gears; multiple ranges (usually low, medium, high) |
| Top Transport Speed | 25-30 km/h (15-19 mph) |
| Drive Options | 2WD and 4WD available |
| Differential-Lock | Standard; increases rear wheel traction when needed |
| Final Drives | Inboard planetary type for strength and durability |
Steering & Brakes
The AGCO LT90A tractor offers reliable control for both steering and braking. You get a system designed for smooth handling and strong stopping power, even when working in more demanding field conditions.
Steering System (Hydrostatic / Power-Assisted / Mechanical)
You have hydrostatic, power-assisted steering on the AGCO LT90A. This system means you do not have to use much force when turning the wheel, even at low speeds or with heavy equipment attached.
Hydrostatic steering uses hydraulic fluid and a pump to assist your efforts so that the steering feels light and responsive. Power steering reduces fatigue during long days in the field.
Whether you are plowing, tilling, or transporting heavy loads, the steering stays consistent and easy to manage. If you use attachments like loaders, you will appreciate how the power-assisted steering makes tight maneuvers much simpler.
Mechanical linkages work together with the hydraulic system to ensure accuracy and durability. This type of steering system is standard among modern utility tractors in the 90-110 horsepower range because of its reliability and user-friendly operation.
Turning Radius (With Brakes)
Your turning radius on the AGCO LT90A depends on whether you are using the brakes to assist. When you apply the brake-assisted turning feature, each rear wheel can brake independently.
This tightens your turns and helps you work in small spaces. When both rear wheels are moving freely, your turning radius is wider.
Using the brakes, you can maneuver easily around trees, tight headlands, or into shed doors. This feature is especially helpful when making precise movements with implements or working near obstacles.
The system is designed to provide predictable control without sudden jerks or loss of traction. Brake-assisted turning is a common function on tractors of this class.
Service Brakes (Wet Disc, Dry Drum, etc.)
The AGCO LT90A uses wet disc brakes for its main service braking system. Wet disc brakes are sealed and operate in an oil bath, which helps keep them cool and reduces wear compared to dry drum brakes.
You will notice that stopping is consistent and reliable, even after long hours of work or on steep inclines. Wet disc brakes require less maintenance and are less prone to fading.
The enclosed design also protects the braking components from dirt, water, and debris. This is especially important if you operate in muddy, wet, or dusty environments.
Many operators find that wet disc brakes provide a smoother braking feel than older dry drum designs. They are standard on most modern tractors in this power class due to their durability and safety.
Parking Brake Type
The parking brake on the AGCO LT90A is integrated with the service brake system and is often mechanically actuated. When you engage the parking brake lever, the brake system locks the rear wheels securely.
This safety feature prevents the tractor from rolling if left on a slope or while parked with implements attached. The design is simple and robust.
You can set or release the brake with a quick motion of the lever. Feedback from users suggests the parking brake holds well even under heavy load or when the tractor is equipped with attachments.
Proper use of the parking brake is critical, especially when working on uneven ground or storing the tractor on an incline.
| Feature | Type / Details | Benefits |
|---|---|---|
| Steering System | Hydrostatic, Power-Assisted | Light, responsive steering, reduced fatigue |
| Turning Radius (With Brakes) | Brake-assisted, independent rear brakes | Tight turns, easy maneuvering in small spaces |
| Service Brakes | Wet Disc Brakes | Consistent stopping, low maintenance |
| Parking Brake | Mechanical, integrated with service brakes | Secure hold, easy to set and release |
Cab & Operator Station
The AGCO LT90A tractor offers important features for your comfort and safety while working long days in the field. You’ll find solid visibility, ergonomic controls, and customizable options that support efficient operation.
ROPS / Cab Option
You can choose between a standard two-post Roll-Over Protective Structure (ROPS) or an optional cab with more features. The open ROPS is basic and gives you direct access to controls with no enclosure around you.
If you work in tough conditions or want more protection, the cab is a better choice. The cab model comes fully enclosed, offering shelter from weather and reducing exposure to dust and noise.
It improves safety in case of rollovers and is a common upgrade for those spending extended hours on the tractor. Both versions make use of ergonomic lever placement, well-marked dashboards, and wide entry steps.
The cab option adds interior lighting, sealed doors, and rearview mirrors for convenience.
Climate Control (A/C, Heater, Filter)
The optional cab is available with air conditioning, a heater, and an air filter system. Air conditioning keeps you cool on hot days, while the heater is important for cold mornings or winter tasks.
Vents are placed to direct airflow evenly around the cab, so temperature changes are quick and effective. Dust and pollen are minimized thanks to the cab’s interior filtration system.
This is important for people with allergies, and it keeps the display panels cleaner. Controls are large and simple, allowing you to make quick adjustments even with gloves on.
The system is designed for ease of use, helping you maintain a comfortable environment and focus on your work rather than outside conditions.
Seat & Suspension
You get an adjustable suspension seat as standard in the AGCO LT90A cab. The suspension absorbs most shocks from bumpy fields or gravel roads, reducing fatigue over long shifts.
You can change the seat height, slide it forward or back, and adjust the recline for best support. Armrests and a padded backrest give added comfort.
The seat fabric is easy to clean and holds up to wear. For visibility, the seat turns slightly to help you check rear implements.
If you use the open ROPS model, the standard seat provides some cushioning but does not have as many adjustable features as the cab version.
Noise Level (dB A @ Operator Ear)
The enclosed cab helps lower the noise level at your ear, reducing engine and outside sound compared to the open ROPS. Typical in-cab noise for tractors like the LT90A is about 75-80 dB (A), making conversations and music possible without strain.
Cab sealing and insulation block a large amount of vibration and rattling. This is important for your hearing health, especially during long workdays.
With ROPS only, noise levels are much higher, often above 85 dB (A). Ear protection is recommended for operators using the open ROPS, especially if the tractor will be running for several hours.
| Feature | ROPS (Open Station) | Cab Option (Enclosed) |
|---|---|---|
| Structure Type | Two-post ROPS | Fully enclosed steel/glass |
| Protection Level | Rollover only | Rollover + weather + dust/noise |
| Climate Control | None | AC, heater, air filter |
| Seat Type | Standard padded seat | Adjustable, suspension seat |
| Seat Adjustments | Basic | Height, slide, recline |
| Noise Level (dB A) | Above 85 | 75-80 |
| Interior Lighting | No | Yes |
| Air Filtration | No | Yes |
| Operator Comfort | Basic | Enhanced (low vibration, better seat, controlled climate) |
| Visibility & Access | Unobstructed | Large glass, mirrors, wide doors |
Hydraulics
The AGCO LT90A tractor features a hydraulic system designed for efficiency and flexibility. You benefit from a reliable flow rate, practical system pressure, and multiple remote valve options for varied implement needs.
System Type (Open-Center / Closed-Center / PFC)
You will find that the AGCO LT90A is equipped with an open-center hydraulic system. In an open-center system, hydraulic fluid flows continuously through the valve when no function is being used.
This type is typical for utility tractors because it is simple and cost-effective. The open-center system supports a steady supply of oil for implements.
The design means there is less complexity in maintenance compared to closed-center or PFC (Pressure Flow Compensated) systems. While it does not allow pressure to be stored for instant, high-demand operations, it works reliably for most common tasks such as lifting, lowering, or operating attachments.
Changing implements and using remotes is straightforward with this system. You do not need to worry about complex controls or electronic monitoring, as operation remains direct and mechanical.
Implement Pump Flow (L min⁻¹)
The main hydraulic pump on the AGCO LT90A delivers a total flow of approximately 57 liters per minute (about 15 gallons per minute). This flow is distributed to mounted and trailed implements.
This rate ensures that you get steady power for most implements, such as loaders, mowers, and balers. The flow rate is well-matched for tasks that require lifting, adjusting, and controlling hydraulic attachments.
You may notice that the actual available flow can vary depending on what other hydraulic functions are being used at the same time. Still, 57 L/min provides you with plenty of capacity for typical farm implements and dual-function hydraulic tasks.
Steering Pump Flow (If Separate)
The LT90A uses a shared hydraulic pump for steering and implement operation, rather than a separate dedicated pump just for steering.
This means steering and implements draw fluid from the same source. If you operate a loader at the same time, you could notice a slight slowing in steering responsiveness.
This setup simplifies the design and is common in tractors of this class. Normal operation usually does not affect steering unless you are working at full hydraulic capacity.
You are unlikely to notice big performance drops unless running high-demand implements and steering at the same time.
Total Combined Flow
The total hydraulic flow from the AGCO LT90A is around 57 liters per minute (15 gallons per minute), based on combined flow from all hydraulic functions, including steering and implement operation.
When both the implement functions and steering are used at once, the system splits this flow. You’ll have adequate power for loader operations, attachments, and steering in most normal conditions.
System Pressure (bar / psi)
The AGCO LT90A hydraulic system is generally rated at a system pressure of approximately 200 bar (about 2,900 psi). With this pressure, the tractor can handle a wide range of implements.
A pressure rating of 200 bar allows you to operate equipment like hydraulic cylinders, loaders, and sometimes more demanding attachments without loss of performance. It delivers enough force for tasks such as lifting heavy bales, operating rear blades, or running hydraulic motors.
Continuous pressure at this rating ensures you get strong and steady performance without unnecessary stress on the system. The components are rated for this pressure to protect against leaks or failures during extended use.
Remote Valves (Number & Type)
The LT90A is configured from the factory with 2 to 4 rear remote valves. These remotes are usually single or double-acting, letting you operate different types of equipment attachments.
With more remote valves, you gain flexibility. You can connect multiple hydraulic implements, such as a loader and a bale grab, without having to swap hoses.
The valves are operated with manual levers that are easy to reach from the cab or operator’s platform. Each remote includes standardized quick-connect couplings.
This makes switching implements quicker and reduces downtime. The configuration supports most traditional and modern implements found on mixed-crop and livestock operations.
LT90A Hydraulic System — At a Glance
| Feature | Specification / Detail |
|---|---|
| System Type | Open-Center |
| Implement Pump Flow | 57 L/min (15 gpm) |
| Steering Pump Flow | Shared with implement flow |
| Total Combined Flow | 57 L/min (15 gpm) |
| System Pressure | 200 bar (2,900 psi) |
| Remote Valves | 2 to 4 (single or double-acting) |
| Remote Valve Control | Manual levers |
| Hydraulic Couplers | Standard quick-connects |
Three-Point Hitch (3PH)
The AGCO LT90A tractor includes a three-point hitch system designed for strength and flexibility. You will find key differences in category ratings, lift capacity, operational controls, and sensing technology.
| Feature | Details |
|---|---|
| Hitch Category | Category II |
| Lift Capacity @ Ball Ends | About 4,000 – 5,800 lbs (varies by configuration) |
| Draft / Position Control | Both available (mechanical levers) |
| Top-Link Sensing | No, not equipped |
| Rear Type | II (standard for this size tractor) |
| Rear PTO Type | 540/1000 RPM (independent PTO) |
Hitch Category (1 / 1N / 2 / 3)
Your AGCO LT90A comes with a Category II three-point hitch. Category II systems use lift arms and pins that are heavier and larger than those in Category I.
This allows attachment of larger implements like heavy mowers, plows, and cultivators. The pin diameter for Category II is 1-1/8 inches, while the arm spacing is about 32 inches.
This lets you connect a wide range of commercial and farm implements. Category II is common for tractors with 90 to 110 horsepower, like the LT90A.
A Category II hitch gives you strength and compatibility for tasks that require more power. This is important for hay work, tillage, and bigger field jobs.
Lift Capacity @ Ball Ends
The rear lift on the AGCO LT90A offers a robust capacity, with ratings typically between 4,000 and 5,800 pounds at the ball ends. This range depends on hydraulic pressure and how your tractor is equipped.
Such lift strength allows you to raise and move heavy implements, such as large rotary cutters, multi-bottom plows, and heavier tillage tools. The lift arms and hydraulic cylinders are built to provide stable lifting, making sure your attachments are secure during operation.
Draft / Position Control
The LT90A provides both draft and position control using mechanical levers located beside the operator seat. Position control lets you set and maintain the exact height of an implement, which is useful for tasks like grading or mowing.
Draft control keeps ground-engaged tools at a consistent working depth by automatically raising and lowering the hitch based on soil resistance. This is especially important when using plows or ground-levelers so that your implement stays level, even on uneven terrain.
Top-Link Sensing (Yes/No)
Top-link sensing is not available on the AGCO LT90A. This means the draft sensing relies solely on the lower links.
Top-link sensing sends load information from the top-link to the draft control system, which can result in more precise depth control. Without this feature, draft response can be less sensitive compared to models with top-link sensing.
For most standard farm operations, the lower-link sensing on the LT90A provides steady performance. You can still use traditional implements and the hitch will perform well under typical field conditions.
| 3PH Feature | Specification / Availability |
|---|---|
| Hitch Category | Category II |
| Rear Lift Capacity | 4,000 – 5,800 lbs @ ball ends |
| Draft/Position Ctrl | Mechanical levers for both |
| Top-Link Sensing | No |
| Rear Type | II |
| Rear PTO Type | 540/1000 RPM, independent |
Axles & Load Limits
Understanding the axle load ratings and final-drive system of the AGCO LT90A Tractor is important for safe operation and long-term reliability. Knowing the specific weight limitations helps you avoid overloading and maintain tractor performance under demanding conditions.
Maximum Front-Axle Load (kg)
The AGCO LT90A’s maximum front-axle load determines how much weight you can safely apply to the front end during operation, including implements and ballast. While the published data for the exact maximum front-axle load in kilograms is not frequently available, the tractor’s front tire size (14.9R24) and its robust front axle design indicate strong load-handling capabilities.
Heavy implements mounted at the front, like loaders or weights, increase the load on the front axle. Exceeding the maximum load limit risks axle damage and steering issues.
To ensure safety, always balance loads and avoid excessive front-heavy attachments. Check tire pressures and condition before use with heavy loads.
Maximum Rear-Axle Load (kg)
The rear axle typically supports the majority of the tractor’s weight, especially during fieldwork or when towing heavy trailers and implements. The AGCO LT90A features large 18.4R34 rear tires, which help carry higher loads and improve traction in difficult conditions.
Exact maximum rear-axle load figures are not often listed in general specifications. However, with an operating weight ranging from approximately 4,001 kg (8,820 lbs) and a robust utility design, the rear axle is built to carry substantial loads.
Monitoring rear-axle weight is essential, especially when using heavy rear implements or ballast. Overloading the rear axle can lead to uneven tire wear, axle fatigue, or failure.
Final-Drive Type
The AGCO LT90A uses a heavy-duty final-drive system suitable for the power output of 110 hp. Final drives transfer torque from the transmission to the wheels, enduring high stresses during pulling and fieldwork.
This tractor is equipped with an outboard planetary final-drive, which is efficient for high-torque tasks. Outboard planetary drives distribute torque better and reduce stress on the axle shafts.
This setup enhances strength and durability, especially during heavy field use.
| Topic | Key Details |
|---|---|
| Maximum Front-Axle Load | Supports heavy implements; no specific figure, but robust design with 14.9R24 tires |
| Maximum Rear-Axle Load | Carries major portion of weight; no exact figure; large 18.4R34 tires for stability and load |
| Final-Drive Type | Outboard planetary system handles high torque; designed for durability and efficient torque use |
Tires & Track Options
You can choose from several tire types and sizes for the AGCO LT90A to match your field conditions. Tire choice affects traction, soil protection, and how well your tractor handles different jobs.
Standard Front Tire Size (Ag / Turf / Industrial)
The AGCO LT90A typically comes with radial front tires as standard for strong grip and balanced wear. For agricultural use, you will often find 11.00-16 Ag tires.
These offer good traction in tilled fields and muddy ground. Turf tires, usually around 27×8.50-15, provide reduced ground pressure to minimize turf damage and are best for mowing or estate work.
For industrial tasks, 12.5/80-18 R4 tires can be fitted, offering tough sidewalls and deep treads to handle construction sites and hard surfaces. Each front tire option has unique tread patterns and construction suited for a particular task:
- Ag: Ribbed tread for pulling power
- Turf: Shallow, wide lugs for gentle contact
- Industrial: Deep, blocky treads for durability
Manufacturers sometimes offer other tire sizes depending on your region, but these are the most common choices available from dealers.
Standard Rear Tire Size
Rear tires play a big role in traction and stability. The standard rear tire for the AGCO LT90A is usually 18.4-30 (Ag tread).
This size delivers significant footprint and traction, which helps transfer the tractor’s 110 hp to the ground with less slippage. For turf work, you may see 21.5L-16.1 or similar tires designed to spread out weight and protect grass.
Industrial rear tires, often sized at 18.4-24 R4, are made for sites where puncture resistance and strong grip are key. All standard rear tire options can typically be set at various tread widths, so you can adjust the stance for row crop farming or stability on slopes.
Be sure to match rear tire size with your primary workload to reduce soil compaction, improve safety, and boost efficiency.
Optional Duals / Tracks / Flotation Kits
You can upgrade your LT90A with dual wheels, tracks, or flotation kits if you need extra traction or lower ground pressure. Dual rear wheels are often selected for heavy tillage or wet fields.
Adding another tire boosts traction and stability, especially when pulling wide implements or operating on soft soils. Tracks are less common but may be available through aftermarket kits.
Tracks spread the tractor’s weight over a much larger area and offer top performance in extremely wet or loose soils. Flotation kits, which include wider tires, are useful if you work in low-lying or muddy areas, reducing ruts and protecting field structure.
When considering any of these options, always check compatibility with your axle and fender clearances.
| Option | Size / Type | Best For | Key Benefits |
|---|---|---|---|
| Front Ag Tire | 11.00-16 | Farming/Tilling | Good field traction |
| Front Turf Tire | 27×8.50-15 | Lawn/Turf | Minimal ground damage |
| Front Industrial Tire | 12.5/80-18 R4 | Construction | Tough, puncture resistant |
| Rear Ag Tire | 18.4-30 | Field Work | High traction, large footprint |
| Rear Turf Tire | 21.5L-16.1 | Grass/Lawn | Gentle, broad contact |
| Rear Industrial Tire | 18.4-24 R4 | Utility/Loader | Strong sidewalls, durability |
| Dual Rear Wheels | Matched to rear | Wet/Soft Soil | Better stability, more traction |
| Tracks | Aftermarket option | Extreme soft ground | Low ground pressure, less rutting |
| Flotation Kits | Wide tires | Muddy/Wet conditions | Protects soil, reduces compaction |
Dimensions & Weight
The AGCO LT90A offers a strong combination of size, stability, and practicality. You get clear measurements for planning storage, selecting attachments, and understanding transport options.
Wheelbase
The wheelbase of the AGCO LT90A is 107.5 inches (273 cm). This dimension is the distance between the centers of the front and rear wheels.
A longer wheelbase, like the one on the LT90A, supports good stability when operating over rough fields or while towing loads. A stable wheelbase helps you handle hills and uneven terrain with more confidence.
With a wheelbase over 100 inches, turning radius is wider, but this sacrifices little in agility. Instead, you gain a machine that tracks well and resists pitching forward or backward during heavy work.
The wheelbase is also a factor in ride comfort and weight distribution.
Overall Length
The AGCO LT90A measures 165.5 inches (420 cm) in overall length from the front weight bracket to the rear of the tractor. Some references list the length up to 174 inches, depending on the specific configuration and included equipment.
This overall length allows easy attachment of implements and provides enough space for extra tools or accessories. Longer tractors like the LT90A tend to offer a smoother ride, and the added length helps distribute weight more evenly.
You can back up to trailers and implements with plenty of room to spare. The extended length also means you need to consider proper storage space, especially indoors.
Overall Width (Minimum Tread)
The minimum overall width is measured according to the tread setting, which affects how the tractor fits between rows or works in narrow spaces. On the AGCO LT90A, the standard minimum width is usually set by the tires and axle configuration.
Often, the minimum overall tread width is about 78-84 inches, depending on the front and rear tire choices. A narrow tread setting helps with navigating tighter spaces or when operating in orchards or vineyards, while wider treads boost stability for fieldwork.
The LT90A can be adjusted within a range to fit specific tasks. Be sure to check tire options and axle positions when setting up your tractor for particular fieldwork, as these factors directly affect your machine’s working footprint.
Height to ROPS / Cab
Height is important for both transport and using the tractor under canopies or in low-clearance areas. With the Roll-Over Protective Structure (ROPS) folded, the LT90A stands at 62.5 inches (158 cm).
With the cab installed, the height increases to 110 inches (279 cm). Having both ROPS and cab height figures lets you know if the tractor will fit inside barns, sheds, or for road transport.
If you need to drive under low structures, folding the ROPS is essential. If the tractor has a cab, you should always measure before entering any building to avoid damage.
The taller cab design provides visibility and operator comfort but requires more vertical clearance.
Ground Clearance
The LT90A provides a ground clearance that supports field tasks like cultivation, spraying, or row crop work. Although the exact figure may vary with tire size and tread adjustment, typical ground clearance for a machine this size ranges from 16 to 20 inches.
Higher ground clearance helps protect the undercarriage and vital components from crop debris, rocks, or low stumps. This also prevents getting stuck on rough ground or uneven terrain.
If you use the LT90A for row crops or over rough fields, good ground clearance reduces the risk of crop or soil damage.
Shipping Weight
The shipping weight gives you the dry weight of the AGCO LT90A, without fuel, fluids, or optional attachments. The basic 2WD (two-wheel drive) ROPS configuration weighs about 8,820 pounds (4,000 kg).
With added features, options, or heavier tires, shipping weight can reach approximately 9,940 pounds. Knowing shipping weight is important for planning safe transport.
This helps when arranging shipping by truck or flatbed and ensures the hauling equipment is strong enough. The shipping weight also factors into delivery costs and helps when considering storage solutions.
Operating Weight (With Fluids)
Operating weight includes all standard fluids—fuel, engine oil, coolant, and sometimes a full hydraulic system. The operating weight of the AGCO LT90A, depending on tires and added equipment, will typically range from about 9,000 to 10,500 pounds.
This figure is important for field performance, soil compaction, and traction. A properly weighted tractor reduces tire slip and improves pulling power.
If you use ballast or fill tires, the weight can increase further. Be sure to understand your tractor’s fully loaded weight for safe operation and correct implement selection.
| Specification | Measurement | Notes |
|---|---|---|
| Wheelbase | 107.5 in (273 cm) | Good for stability, field use |
| Overall Length | 165.5–174 in (420–442 cm) | Depends on configuration |
| Overall Width | 78–84 in (min tread) | Varies with tread setting, tire choice |
| Height to ROPS | 62.5 in (158 cm, folded) | ROPS can be folded for lower clearance |
| Height to Cab | 110 in (279 cm) | For cabs—check before entering buildings |
| Ground Clearance | 16–20 in | Dependent on tires, tread setting |
| Shipping Weight | 8,820–9,940 lb (4,000–4,510 kg) | No fluids, basic configuration |
| Operating Weight | 9,000–10,500 lb (with fluids) | Fluids, possible ballast, ready for work |
Fuel & Fluids
Proper fuel and fluid levels are essential for the AGCO LT90A Tractor’s performance and longevity. Knowing each specification helps keep your tractor reliable and productive.
Fuel-Tank Capacity
The AGCO LT90A uses diesel fuel. Its main fuel tank holds 34.3 gallons (129.8 liters), which supports long work periods before needing to refill.
If you need even more fuel for extended jobs, there is an optional auxiliary tank that increases the total fuel capacity to 49.3 gallons (186.6 liters). The tractor’s diesel engine requires clean, good-quality fuel for best results.
Be sure to check for water or debris in the tank to avoid problems in performance. Using proper diesel fuel also helps the engine run more efficiently, especially under tough working conditions.
Fill the tank at the start of each shift and store fuel in a secure, clean location to prevent contamination. Always keep an eye on fuel levels to avoid interruptions on the job.
DEF-Tank Capacity (If Applicable)
The AGCO LT90A tractor does not use Diesel Exhaust Fluid (DEF) since it was produced before modern emissions standards that require DEF systems. This means there is no DEF tank on this model, and you do not have to worry about refilling DEF as part of regular maintenance.
You only need to focus on traditional diesel fuel and standard fluids. This makes servicing and daily use more straightforward.
If you use newer equipment that meets stricter emission regulations, be aware that DEF may be required for those models, but not for the LT90A. No DEF also means there are no extra filters or SCR systems to service.
Maintenance remains simpler and less costly in this regard.
Engine Oil Capacity
The engine on the AGCO LT90A holds about 9-10 quarts (8.5–9.5 liters) of oil, typically requiring SAE 15W-40 that meets API service standards for heavy-duty diesel engines. The exact oil capacity can vary depending on whether the oil filter is replaced during the oil change.
Oil should be checked before use and changed at regular intervals, according to your operator’s manual or at least every 100-200 hours. Using fresh oil and changing filters helps to keep the 4.4-liter Sisu diesel engine running smoothly and prevents excess wear.
Look for signs of contamination, such as a milky appearance or debris. If oil looks discolored or smells burnt, replace it sooner to protect your tractor from damage.
Hydraulic/Transmission Oil Capacity
The AGCO LT90A uses a shared hydraulic and transmission oil system. This system has a total fluid capacity of about 14–17 gallons (53–64 liters), depending on model options and whether you are draining cooler lines and filters as well.
High-quality, manufacturer-recommended fluid—often labeled as universal tractor transmission/hydraulic (UTTO) oil—should always be used. Keep fluid at the proper level by checking dipsticks and sight glasses regularly.
Regularly replace hydraulic/transmission filters and inspect hoses and seals for leaks. Clean oil reduces friction, protects internal gears, and ensures smooth operation of both the transmission and hydraulics, including the loader and three-point hitch.
| Feature | Specification | Notes |
|---|---|---|
| Fuel Type | Diesel | Use clean, quality diesel |
| Main Fuel Tank Capacity | 34.3 gal (129.8 L) | Optional: up to 49.3 gal (186.6 L) |
| DEF Tank | Not present | No DEF system required |
| Engine Oil Capacity | 9-10 qt (8.5–9.5 L) | SAE 15W-40 oil, change regularly |
| Hydraulic/Transmission Oil | 14–17 gal (53–64 L) | Use manufacturer-approved UTTO |
Electrical System
The AGCO LT90A tractor uses a modern 12-volt electrical setup, which makes starting and running accessories efficient. It features an open center hydraulic system and includes a robust alternator and battery designed for agricultural tasks.
Ground Type (Negative / Positive)
You will find that the AGCO LT90A uses a 12-volt negative ground electrical system. Negative ground systems are standard in most modern vehicles and tractors.
This setup means the tractor’s chassis serves as the return path for the electrical circuit, reducing wiring complexity and ensuring reliable operation. A negative ground provides better corrosion protection for electrical contacts.
It also allows easier compatibility if you plan to connect additional equipment or replacement parts. Frequent maintenance checks for clean, tight connections are important, especially at the battery terminal where corrosion can form.
The tractor’s electrical repairs or upgrades should always respect the negative ground wiring pattern. Mixing ground types can cause electrical faults or damage components.
Consult your service manual or a technician if you’re unsure when servicing the electrical system.
Alternator / Charging System
The LT90A features an alternator-based charging system. The alternator supplies power to keep the battery charged during operation.
It also handles the load for the tractor’s lights, instruments, and any attached accessories. Alternators in this tractor class are designed for long hours and can better handle modern demands than older generator systems.
The alternator is usually mounted to the engine and driven by a belt. You should regularly examine the drive belt for wear, cracks, or slack.
A functioning alternator is essential for reliable starts and to avoid running down the battery, especially when using many electrical accessories. Warning lights or readouts on the dash show the charging status.
If the system fails, you might see dim lights or have trouble starting.
Charging Output (Amps)
The charging output from the LT90A’s alternator is generally in the range of 60-90 amps, though the exact specification may vary by year or specific model options. This output is enough for the tractor’s starting requirements, standard lights, and most available attachments.
A higher charging output allows you to use more electrical devices at once without draining the battery. If you notice slow cranking or dimming lights, it may indicate a problem with the alternator output.
You can check the output with a multimeter or at a service shop. Proper charging capacity helps power extra features like external work lights or aftermarket electronics.
Always refer to the tractor’s manual when connecting additional devices to prevent overloading the charging system.
Battery Voltage
The AGCO LT90A is equipped with a 12-volt battery. This standard voltage matches what you find in most vehicles and is suitable for easier starting, even in colder weather.
A single 12-volt battery is used rather than two 6-volt units in series. Keeping your battery fully charged and maintained is important for long service life.
Disconnect the battery when performing major electrical work. If you ever need a replacement, match the 12-volt rating and check the battery dimensions before purchase.
Make sure the new battery fits the mounting tray and allows secure cable connections.
Battery CCA Rating
The Cold Cranking Amps (CCA) rating on the LT90A’s battery is typically around 700-900 CCA. This number is important, as it measures the battery’s ability to start the engine in low temperatures.
A higher CCA rating ensures your tractor will start reliably during cold mornings when thicker oil and lower temperatures make engines harder to crank. Always choose a battery with at least the recommended CCA.
If you operate in very cold environments, consider a battery with extra CCA. Use maintenance techniques such as battery blankets or trickle chargers in harsh winter conditions to avoid unexpected battery failures.
| Electrical Component | Specification/Type | Notes |
|---|---|---|
| Ground Type | Negative Ground | Modern standard; easier compatibility |
| Alternator | Belt-driven | Supplies charging power to battery & accessories |
| Charging Output | 60–90 Amps (typical) | Sufficient for lights, instruments, and add-ons |
| Battery Voltage | 12 Volts | Widely available, supports reliable starting |
| Battery CCA Rating | 700–900 CCA | Needed for cold-weather starting |
Total Cost of Ownership Metrics
When you consider buying or operating the AGCO LT90A Tractor, it’s important to look beyond the sticker price. Key factors like service, maintenance costs, equipment value over time, and fuel use all affect your budget.
Recommended Service Intervals
To keep your LT90A running reliably, you should follow these regular maintenance intervals:
- Engine oil and filter: every 250 hours
- Transmission filter: every 500 hours
- Air filter: inspect every 100 hours, replace as needed
- Hydraulic fluid and filters: every 1,000 hours
- Coolant: replace every 2 years or 2,000 hours
- Full inspection: yearly or every 500 hours
Following the manufacturer’s guidelines ensures you catch wear and tear early. Regular service also protects your warranty coverage and helps with future resale value.
Estimated Annual Maintenance Cost
Annual maintenance costs for the AGCO LT90A typically range from $1,200 to $2,000. This price includes routine parts and consumables such as oil, filters, coolant, and grease.
Labor for yearly inspections and basic repairs also adds to this figure. Occasional replacement of belts, hoses, and minor hydraulic components can increase your total.
More extensive or unscheduled repairs, like a transmission or pump, could exceed these averages in rare cases. Costs will vary based on use intensity, storage conditions, and local service rates.
Depreciation Curve (% Per Year)
The AGCO LT90A holds its value fairly well compared to some tractors in its class. The typical depreciation pattern is:
| Year | Depreciation (%) | Remaining Value (%) |
|---|---|---|
| 1 | 15 | 85 |
| 2-4 | 8 per year | 61 |
| 5+ | 5 per year | 46 (after 7 years) |
Tractors lose value fastest in the first few years. After the initial drop, depreciation slows.
Keeping up with maintenance and records can help your tractor maintain a higher resale price. Major repairs or neglect will speed up depreciation.
Fuel Consumption @ Rated Load (L hr⁻¹)
At full rated load, the LT90A’s 110 hp diesel engine uses about 20–24 liters of fuel per hour. This estimate comes from tests and operator reports under normal farming conditions.
Your actual rate depends on the type of work, terrain, and engine load. Hauling or heavy tillage uses more fuel, while light work uses less.
Keeping the engine tuned and tires properly inflated helps cut fuel use.
| Metric | Typical Value or Range | Details |
|---|---|---|
| Service Intervals | 100-1,000 hours | Varies by part/system (see above) |
| Annual Maintenance Cost | $1,200–$2,000 | Includes parts and labor |
| Depreciation (Year 1) | 15% | Highest in first year |
| Depreciation (Years 2-4) | 8% per year | Slows after first year |
| Depreciation (Year 5+) | 5% per year | Value remains more stable after 5 years |
| Fuel Consumption @ Rated Load | 20–24 L/hr | Depends on workload and conditions |