AGCO Allis 4650 Tractor 50 hp Overview, Features, and Specifications

AGCO Allis 4650 Tractor 50 hp

You will find the AGCO Allis 4650 is a 50-horsepower diesel utility tractor built for reliable field work. It stands out for its simple design, strong engine, and reputation for durability among mid-size tractors.

Topic	Detail/Description
Model Number / Series	4650 (AGCO Allis 4600 Series)
Manufacturer / Brand	AGCO Allis (by SAME – Italy)
Production Years	1992 – 1999
Factory Location	Italy (SAME factory)
Engine Power	50 hp (engine), 40 hp (PTO)
Serial Number Location	Data plate below steering wheel
Original List Price	Estimated $18,000–$22,000 (early 1990s, USD)

Production & Identification

The AGCO Allis 4650 is part of the 4600 Series utility tractors. Production began in the early 1990s and ended near the end of that decade.

You can recognize the 4650 by its compact shape, orange and gray color, and AGCO Allis branding on the hood. A three-cylinder air-cooled diesel engine made it reliable for heavy use.

Main purpose includes mowing, hauling, plowing, and general farm work. Your 4650 can handle multiple implements because it includes a strong rear PTO and two hydraulic remotes.

If you want to confirm the exact model, check the model number “4650” on decals. Look for the serial tag plate in the lower dashboard area.

Manufacturer / Brand

AGCO Allis is a brand under AGCO Corporation. The 4650 was made by SAME, an Italian company known for tractor innovation.

SAME was a major partner for AGCO in the 1990s, making several models for U.S. and global markets. AGCO bought out several brands (including Deutz-Allis) and used the AGCO Allis brand on Italian-made tractors.

SAME’s design and engineering gave these tractors a reputation for hardy, dependable performance. Your 4650 benefits from both AGCO’s U.S. marketing and SAME’s European manufacturing standards.

Model Number / Series

The “4650” refers to its approximate 50-horsepower output as part of the AGCO Allis 4600 Series. Other models in the series (like the 4630 and 4655) share similar features but differ in horsepower and small options.

Series features include a robust 3-cylinder diesel engine, 2WD or 4WD options, and a gear-type transmission. The 4650’s simple controls make it popular for small to medium sized farms.

You can easily spot this model due to the number “4650” on the side hood decal. AGCO Allis marketed these tractors as multi-purpose machines for demanding jobs.

Factory of Manufacture

Your AGCO Allis 4650 was built in Italy at the SAME factory. SAME’s facility is known for producing reliable tractors for export to North America and elsewhere.

Italian tractors from SAME focus on air-cooled engines and sturdy construction. Assembly quality is good, favoring function over luxury.

Many components are European in design, with some specific U.S. additions for safety and comfort. SAME’s production line allowed AGCO Allis to compete with other worldwide brands in this horsepower class.

Years Produced

Production of the AGCO Allis 4650 started in 1992 and ended in 1999. These model years made it part of a competitive market for mid-size utility tractors.

If you are buying a used model, most of them come from the 1994 to 1998 production period. Each year’s model kept a consistent appearance and similar components.

Later years saw the introduction of newer models as AGCO updated its tractor lineup. Knowing the year can help you match parts or trace the machine’s service history.

Original List Price (Launch Year)

When first sold in the United States in the early 1990s, the AGCO Allis 4650 had a list price between $18,000 and $22,000 USD.

You could get extra options for more money, such as front-end loaders, more hydraulic remotes, or 4WD. Price depended on dealer location and equipment.

Compared to other tractors, the 4650 sat in the middle price range for utility models. Today, used models usually sell for much less, based on age and condition.

Serial-Number Location

Your 4650’s serial number is stamped on a metal plate. This plate is usually found on the main tractor frame, below the steering wheel or just behind the engine area on the left side.

Check the plate for a string of numbers and letters, which includes the exact serial number. Record this number for future reference when getting parts or repairs.

Dealers and service manuals may require the full serial number for proper model identification, since features may have changed slightly over the years. Always check the serial number before buying or selling to confirm you have a real, original AGCO Allis 4650.

Engine Specifications

The AGCO Allis 4650 tractor features a 3-cylinder diesel engine designed for efficiency and reliable power output. The model’s engine delivers strong torque, meets typical emissions standards for its era, and is well-suited for mid-range farming needs.

Engine Make & Model

This tractor is equipped with a SLH 3.1L 3-cylinder diesel engine. SLH stands for SAME-Lamborghini-Hürlimann, a well-known brand in agricultural machinery.

The 3.1-liter engine is direct-injected and designed to offer steady performance and long life. Direct injection improves the fuel delivery and can lower fuel consumption.

The engine block is compact but sturdy, helping ensure reliability even in harsh working conditions. The AGCO Allis 4650 uses both 2WD and 4WD configurations, but both are powered by the same SLH diesel engine.

Fuel Type & Emissions Tier

The AGCO Allis 4650 uses diesel fuel as its primary fuel type. Diesel engines provide better torque at lower RPMs, which suits the stop-and-go patterns of tractor work.

During its era of production, the 4650 did not have advanced emission controls like more recent models. You can expect it to meet basic emissions standards from the early 1990s, but it is not Tier 4 or Tier 3 compliant.

There is no factory-installed diesel particulate filter (DPF) or selective catalytic reduction (SCR) system. The fuel system uses direct injection for improved combustion efficiency and lower visible smoke.

You must use standard agricultural-grade diesel, and no special additives are required by default.

Cylinders / Displacement

This engine comes with 3 cylinders, making it simpler than many larger tractors. The smaller number of cylinders makes maintenance and repair tasks more straightforward for you.

Its engine displacement is 3.1 liters (approximately 3,100 cc). A displacement of 3.1 L is significant for a 3-cylinder tractor engine and provides a good balance of torque and fuel efficiency.

This displacement helps deliver consistent power, whether you are using the PTO or hauling. The cylinder arrangement is in-line, and this layout is common for durability and ease of maintenance.

Rated Horsepower (Gross & Net)

The AGCO Allis 4650 offers a rated gross engine horsepower of 50 hp (37.3 kW). Net PTO horsepower is 40 hp (29.8 kW) as claimed, with tested PTO output slightly higher in some reports at about 40.36 hp.

You can expect gross horsepower at rated engine speed (2,200 rpm). Horsepower values may differ slightly depending on the test method or if measured at the drawbar or PTO.

For demanding implements, engine and PTO horsepower figures guide you on what attachments you can safely use. The drawbar test recorded around 37.25 hp, confirming solid drawbar pulling capability.

Peak Torque (Nm @ rpm)

Exact torque figures are not always provided in legacy models like the 4650. However, a 3.1 L diesel engine typically delivers strong torque at low-to-mid engine speeds.

You can expect peak torque to occur at a lower rpm range, helping you during tilling, loader work, or heavy draft applications. This low-end torque allows you to handle tough field jobs without needing high engine speeds.

The tractor’s direct-injection system also helps maximize available torque by ensuring efficient combustion. Peak torque is essential for maintaining speed under load.

Compression Ratio

Compression ratio for the AGCO Allis 4650 engine is 17:1. A higher compression ratio like this is normal for diesel engines and contributes to better efficiency and more power per unit of fuel.

The 17:1 ratio helps you achieve reliable starting even in colder weather and improves overall fuel combustion.

This compression ratio also means the engine is rugged, able to take heavy work without significant wear. It’s important for you to use quality diesel fuel to keep the high-compression engine running smoothly.

Cooling System & Capacity

The cooling system in the AGCO Allis 4650 uses air-cooling rather than liquid-cooling, which is less common in modern tractors but effective for models of this era. Air-cooled systems require less maintenance since there are no radiators or coolants involved.

You should keep the air intakes clean and free of debris to prevent overheating. This setup helps keep the engine operating temperature in range during field work, especially in warm climates.

With fewer parts in the cooling system, your maintenance routines will be simpler. However, always monitor the engine temperature gauge when working in dusty or exceptionally hot environments.

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AGCO Allis 4650 Engine Specification Table

Specification	Detail
Engine Make & Model	SLH 3.1L 3-cyl diesel (SAME-Lamborghini-Hürlimann)
Fuel Type	Diesel (direct injection)
Emissions Tier	Pre-Tier 1/Early 1990s standards (No DPF, No SCR)
Cylinders	3 (In-line configuration)
Displacement	3.1 liters (3,100 cc)
Gross Horsepower	50 hp (37.3 kW)
PTO Horsepower (claimed)	40 hp (29.8 kW)
PTO Horsepower (tested)	40.36 hp (30.1 kW)
Drawbar Horsepower	37.25 hp (27.8 kW, tested)
Rated RPM	2,200 rpm
Peak Torque (est.)	Strong low-mid rpm torque (exact figure not specified)
Compression Ratio	17:1
Cooling System	Air-cooled
Cooling Capacity	N/A (no liquid coolant required)

Power Take-Off (PTO)

The AGCO Allis 4650 comes equipped with a rear power take-off (PTO) system that lets you run a range of implements like mowers, balers, and tillers. The PTO is a key feature for productivity in many types of farm work.

Claimed PTO Horsepower

The 4650 tractor has a claimed PTO horsepower of 40 hp. This number reflects the power that is available at the PTO shaft for attachments and equipment.

The difference between the engine horsepower (50 hp) and PTO horsepower (40 hp) is due to the mechanical losses that occur between the engine and the PTO shaft. These losses are typical for most tractors in this class.

When comparing it to other tractors in its range, the 40 hp at the PTO means it can handle medium-duty equipment. For tasks like running a rotary cutter or powering a round baler, you should check the exact PTO power requirements of your implements.

Here is a simple breakdown:

Specification	Value
Engine Horsepower	50 hp
Claimed PTO Horsepower	40 hp
PTO (Tested)	40.36 hp
Drawbar Horsepower	37.25 hp

You can expect consistent PTO output for typical daily work, but extremely demanding jobs might need a tractor with higher PTO horsepower.

PTO Type (Independent / Live / Economy)

The AGCO Allis 4650 comes with an independent rear PTO. This means the PTO runs separately from the tractor’s transmission and can be engaged or disengaged without stopping the tractor.

With an independent PTO, you control your implement from the cab with a simple lever or switch. This system improves efficiency when you need to stop or change direction, since you don’t have to turn off the PTO every time you operate the clutch or shift gears.

There is no live or economy PTO option. This tractor’s independent PTO is well-suited for handling attachments that start and stop repeatedly during use, like tillers or hay tools.

Safety is also improved, since you can quickly cut power to your attachment without affecting the tractor’s movement.

PTO Feature	Type
Rear PTO	Independent
Mid PTO	Not Available
Engagement	Lever or Switch
Live PTO	No
Economy PTO	No

You do not have to match implement operation to tractor movement. This lets you work more smoothly and maintain steady implement speeds.

PTO Speeds (540 / 1 000 rpm)

The rear PTO on the AGCO Allis 4650 offers a 540 rpm speed as standard. This is the most common speed used for many farm implements like mowers, spreaders, and some balers.

Some tractors in this series may also offer a 1,000 rpm PTO option depending on the model or market, but for the 4650, 540 rpm is the default and most widely used speed.

Running equipment at the correct PTO speed is important. Using a 540 rpm attachment on a 1,000 rpm shaft, or vice versa, can cause damage or poor performance.

You should always check your implement’s required PTO speed before connecting.

PTO Speed Options	Available
540 rpm	Yes
1,000 rpm	Sometimes*
Multi-speed PTO	No

*(Some 4650 models may be fitted with 1,000 rpm but it is not standard.)

You can shift to the correct speed by using the lever in the cab.

Transmission & Drivetrain

The AGCO Allis 4650 comes with a practical drive system that keeps things straightforward yet reliable in work situations. You get strong gear choices, solid drive options for different conditions, and dependable features that help you get jobs done with less hassle.

Transmission Type (Syncro, Powershift, CVT, HST)

The AGCO Allis 4650 features a synchromesh transmission. This type of transmission allows you to shift gears smoothly while moving, without needing to stop the tractor every time.

A synchromesh setup uses synchronizers to match the speed of the gears, so you can switch from one gear to another with less risk of grinding. The clutch is a 250mm dry disc, giving you good control when engaging or disengaging the transmission.

This clutch size helps handle the power output from the 50 hp engine. Maintenance is straightforward, and the dry style provides reliable operation over long periods.

You do not get an automatic transmission, a hydrostatic drive, or a power shift option on this model. The manual, gear-driven synchromesh layout is built for easy control in multiple field and transport settings.

Number of Gears / Ranges

You have a choice of either 12 forward and 3 reverse gears (in most models) or, in some configs, 16 forward and 4 reverse gears. Each gear is accessed with a clear shift pattern, and the range selector makes it simple to choose the best setting for tasks like tillage, mowing, or road transport.

The gear spread allows you to work at different speeds and select the right amount of torque for the job. Whether you need to creep through heavy soil or travel quickly between fields, these gears give you needed flexibility.

The transmission is arranged to minimize downtime between shifts. You get a good range of speeds in both forward and reverse, making it easier to match ground speed to your implement and terrain.

Top Transport Speed

The AGCO Allis 4650 can reach a maximum transport speed of about 16 to 19 mph (25 to 30 km/h), depending on tire size and transmission setup. While not the fastest, this transport speed fits most rural roads and farm operations.

You are able to move efficiently between fields or haul light loads over short distances. The gear ratios allow you to reach top speed without over-revving the engine.

This helps make sure you do not waste fuel or cause excess wear. The speed range in each gear is designed to make sure you can pick up speed smoothly.

Drive (2WD / 4WD / AWD)

You can pick between 2WD (4×2) or 4WD (MFWD 4×4) drive setups for the AGCO Allis 4650. The 2WD option uses a simple rear-wheel drive, which is lighter and better for dry, flat fields.

The 4WD model adds mechanical front-wheel drive (MFWD). 4WD gives you better traction, especially in wet or rough conditions or when pulling heavy loads.

The system engages the front axle to share the workload across all four wheels. This is helpful if you work in tough terrain or need to use mounted and pull-behind implements.

The design of the chassis supports both drive systems. On 4WD models, the front axle is heavier-duty and can handle uneven ground much better.

The compact chassis helps you maneuver even in tight spots, regardless of the drive type chosen.

Differential-Lock & Final Drives

You have a differential lock included as standard. This feature lets you lock both rear wheels together, so they turn at the same speed.

If one wheel slips in mud or loose soil, the lock helps maintain traction and keeps you moving forward. The final drive uses a reduction system that helps transmit power directly to the rear wheels.

This setup is designed for durability under load and provides more torque at the axle. The system is robust and stands up to tough field work as well as transport duties.

Using the differential lock is straightforward—usually activated with a foot pedal or lever in the cab. It’s meant to be used when you sense wheel slip or in especially slick spots, then released once your grip returns.

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Transmission & Drivetrain Summary Table

Feature	Details
Transmission Type	Synchromesh (manual), 250mm dry disc clutch
Number of Gears	12F/3R or 16F/4R, depending on configuration
Top Transport Speed	16–19 mph (25–30 km/h)
Drive Options	2WD (4×2) or 4WD (MFWD 4×4)
Differential Lock	Standard rear diff-lock with pedal/lever control
Final Drives	Reduction gear system for direct torque delivery
Chassis	Supports both 2WD and 4WD; compact and easy to maneuver

Steering & Brakes

Precise steering and reliable brakes are important for safe and efficient operation of your AGCO Allis 4650. This section details how each system works and what you can expect during regular use.

Steering System (Hydrostatic / Power-Assisted / Mechanical)

Your AGCO Allis 4650 features a power steering system. This setup uses hydraulic pressure to assist in steering, making it much easier to turn the wheels.

You won’t need to use as much physical effort, even when the tractor is carrying heavy loads or using front-end implements. A power-assisted system means you get smoother steering response, especially at low speeds or while making sharp turns.

The system is reliable and reduces driver fatigue over long working hours.

Key features:

• Hydraulically assisted steering
• Responsive control under load
• Less manual force needed than with mechanical systems

This type of steering is standard for tractors in this horsepower range. It lets you make quicker adjustments in the field and is less likely to result in hand strain or fatigue.

Turning Radius (With Brakes)

The turning radius influences how tightly you can maneuver the tractor, especially in smaller fields or around obstacles. With the use of the brakes, you can further reduce your turning radius by applying the brake to just one wheel.

This is called brake-assisted turning. For the AGCO Allis 4650, you can expect the turning radius to be relatively compact for a utility tractor of its size.

When you apply the steering and assist with the brake, you can complete sharper turns that would be harder to make with steering alone.

What to expect:

• Tighter turns with brake-assisted steering
• Improved maneuvering in confined spaces
• Useful when turning at row ends or in farmyards

You can use this technique to make quick, precise movements without needing to back up or make wide loops.

Service Brakes (Wet Disc, Dry Drum, etc.)

The AGCO Allis 4650 tractor is equipped with mechanical wet disc brakes. Wet disc brakes operate in oil, which helps keep them cool and prevents excess wear, even with repeated use.

This system provides steady and predictable stopping power. The mechanical operation ensures a direct connection between the brake pedal and the brake mechanism.

It’s low maintenance compared to older dry drum brakes, and the design allows for safer stops in wet or muddy conditions.

You benefit from:

• Consistent brake performance in all weather
• Longer service intervals due to less wear and tear
• Reduced risk of brake fade during heavy use

These brakes are commonly found on modern tractors because they combine safety, durability, and low maintenance needs.

Parking Brake Type

For secure parking, the AGCO Allis 4650 uses a lever-operated parking brake that locks the service brakes in place. The parking brake is essential for holding the tractor stationary on sloped surfaces or when not in use.

You operate the parking brake independently of the main brake pedals. This provides added assurance that the tractor will not roll or move unintentionally when parked.

Parking brake system highlights:

• Engaged using a dedicated lever
• Locks the wet disc brakes for reliable holding power
• Designed to be easy to set and release, even while wearing gloves

Routine checks should be performed to make sure the parking brake mechanism is functioning correctly and engaging fully each time.

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Steering & Brakes System Overview Table

Feature	Type / Mechanism	Key Benefits	Maintenance Requirements
Steering System	Power-assisted (Hydraulic)	Easy, responsive steering; less effort needed	Inspect fluid levels regularly
Turning (With Brakes)	Brake-assisted	Tighter turning; improved maneuvering	Check for even brake operation
Service Brakes	Mechanical Wet Disc	Reliable stops; less wear; works in wet/mud	Periodic inspection & adjustment
Parking Brake	Lever-Locked Wet Disc	Safely holds tractor; easy to operate	Confirm engagement periodically

Cab & Operator Station

The AGCO Allis 4650 offers a range of features for your comfort and safety while working. The design focuses on protecting you, reducing fatigue, and controlling the environment in the operator area.

Feature	Details
ROPS / Cab Option	Four-post ROPS, open platform, or optional cab for weather protection
Climate Control	Heater and filtered cab standard in some versions; air conditioning may not be standard but can be added in some markets
Seat & Suspension	Adjustable vinyl seat, spring or mechanical suspension for stability and comfort
Noise Level (dB A @ Ear)	Typically around 80-85 dB(A), depending on configuration

ROPS / Cab Option

You can choose between an open operator station or a four-post ROPS (Rollover Protective Structure). The open design gives easy entry and good visibility, which is helpful for quick jobs and tasks requiring regular mounting and dismounting.

The four-post ROPS provides strong overhead protection if the tractor tips or rolls over. This is a critical safety feature, especially on uneven ground.

Some versions offer a cab option that encloses the station and shields you from weather, dust, and flying debris. If you choose a cabbed model, you get solid doors, windows, and better isolation from outside conditions.

The cab also reduces sun exposure and makes long days more comfortable. Both ROPS and cabs are designed to meet safety standards for agricultural tractors.

Climate Control (A/C, Heater, Filter)

Most open station units do not include climate control systems, so you rely on natural airflow and basic shade. The cab-equipped AGCO Allis 4650 usually features a heater and an air filter as standard.

This setup helps keep you comfortable in cold or dusty conditions. Air conditioning is sometimes available on select cabbed versions, but not all models include this feature as standard.

If you work in hot areas, check if A/C is installed or can be added. The air filtration helps reduce dust, pollen, and other particles, which is important for sensitive users or dusty work environments.

The heating system uses the engine’s coolant and is controlled by simple switches or knobs at your fingertips. The filtered cab keeps air cleaner and slows down how quickly the inside gets dirty.

Seat & Suspension

The AGCO Allis 4650 comes with a durable vinyl seat. You can usually adjust the seat position forward and backward to suit your height and reach.

Some models include a spring suspension or basic mechanical suspension under the seat. Suspension reduces bumps and vibrations from rough fields or gravel roads.

It makes long periods on the tractor much easier on your back. Armrests may be found on some versions to provide added support, but these are not always included.

Regular seat checks and adjustments help prevent discomfort and fatigue. The seat platform is wide enough for most users to climb on and off safely without tripping or slipping.

Noise Level (dB A @ Operator Ear)

Noise levels for the AGCO Allis 4650 at the operator’s ear usually range from 80 to 85 decibels (dB A), depending on the cab configuration and engine load. Open station units can be slightly louder due to lack of sound insulation.

Cabs reduce noise with insulated panels and rubber seals around doors and windows. This quieter environment reduces stress and allows you to hear warning signals or communicate with others nearby.

It is still recommended to use ear protection if operating for long periods, especially on open models or at full throttle.

Hydraulics

The hydraulic system on the AGCO Allis 4650 affects the tractor’s field performance and how well it handles implements. This system is essential for lifting, steering, and controlling attachments.

System Type (Open-Center / Closed-Center / PFC)

Your AGCO Allis 4650 uses an open-center hydraulic system. This means hydraulic fluid flows continuously through the system when it is operating, making it simple and cost-effective.

An open-center system is generally easy to maintain. It allows the pump to run without much resistance when no hydraulic devices are in use.

This design offers reliable performance for most farm tasks and reduces complexity. Tractors like this rarely use closed-center or pressure-flow compensated (PFC) systems, which are more common in higher-horsepower or specialty models.

Implement Pump Flow (L min⁻¹)

The implement pump flow is key if you plan to run hydraulic implements like loaders or mowers. On the AGCO Allis 4650, the open-center hydraulic pump has a capacity of about 39.4 liters per minute (L/min).

This rate means your hydraulic implements will have sufficient flow for smooth operation in most farm applications. It supports standard cylinders or motors that require moderate hydraulic speed.

A pump flow around 39 L/min works well for the AGCO Allis 4650’s size and horsepower.

Steering Pump Flow (If Separate)

In some tractors, the steering and implement pumps are separate. This helps if you need steering and implement hydraulics at the same time.

On the AGCO Allis 4650, the hydraulic system usually uses a shared (combined) pump for both steering and implements. There is no separate steering flow pump.

Instead, the system is designed to ensure steering gets priority flow, meaning you should not lose steering control even while operating other hydraulics. This combined pump setup keeps maintenance simple.

It also avoids extra components that could wear out or need special repair.

Total Combined Flow

Because the AGCO Allis 4650 uses a single hydraulic pump, the total combined flow remains about 39.4 L/min. All hydraulic functions—both steering and external remotes—draw from the same capacity.

If you have multiple hydraulic operations at once, the total flow divides between the demands. Tasks that require high flow at the same time may operate a bit slower.

There are no supplemental pumps or additional circuits installed from the factory.

System Pressure (Bar / psi)

The hydraulic system pressure for the AGCO Allis 4650 is typically set around 170-190 bar (about 2,500 to 2,750 psi). This pressure enables the tractor to lift moderate loads and operate most farm implements designed for this tractor class.

It is enough for normal loader work, three-point hitch lifting, and basic hydraulic tools. High-pressure circuits are protected by relief valves to avoid system damage.

The open-center design supports safe, predictable hydraulic operation at these pressures. Avoid exceeding manufacturer limits for both pressure and flow.

Remote Valves (Number & Type)

The AGCO Allis 4650 is usually equipped with two rear remote valves. These remotes are standard single- or double-acting spool valves.

You can use these remotes to power external hydraulic cylinders, implements, or auxiliary equipment. The levers are hand-operated from the cab, offering good control for farm tasks like lifting or angling equipment.

Some units may allow added remotes, depending on original configuration or dealer add-ons. The standard setup meets most needs for a 50 hp tractor, but check your specific model to confirm the available remote valves.

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Feature	Specification / Details
System Type	Open-center
Implement Pump Flow	~39.4 L/min
Steering Pump Flow	Shared with implement (no separate pump)
Total Combined Flow	~39.4 L/min
System Pressure	170–190 bar (2,500–2,750 psi)
Remote Valves	2 rear, single/double-acting

Three-Point Hitch (3PH)

The AGCO Allis 4650 tractor features a standard three-point hitch (3PH) system that is essential for connecting a variety of implements. This system affects how much weight you can lift, your control over the attached equipment, and what types of tools you can safely use.

Hitch Category (1 / 1N / 2 / 3)

Your AGCO Allis 4650 comes equipped with a Category 2 three-point hitch. Category 2 hitches are commonly found on tractors in the 40-120 hp range.

They use larger pins and provide more strength for heavier and wider implements compared to Category 1. The pins on a Category 2 hitch measure 1 inch for the top pin and 1 1/8 inches for the lower lift arm pins.

This allows you to use implements such as heavier mowers, large tillers, and some small field cultivators. It is important to check the compatible category of your attachments, as they must match the tractor’s hitch size.

Some adapters are available if you need to fit Category 1 implements.

Comparison Table: Hitch Categories

Hitch Category	Top Link Pin (in)	Lift Arm Pin (in)	HP Range	AGCO Allis 4650 Uses
1	3/4	7/8	Up to 45 hp	No
2	1	1 1/8	40-120 hp	Yes
3	1 1/4	1 7/16	80-225+ hp	No

Lift Capacity @ Ball Ends

Your tractor’s rear lift system provides a strong lifting ability, which is measured at the ball ends of the lower lift arms. The AGCO Allis 4650 typically delivers a lift capacity around 3,500 pounds at the ball ends.

This is suitable for most medium-sized farm implements. The “at ball ends” measurement means the lift arms can raise this weight where the implement attaches—this is the most accurate test of what your tractor can handle.

If your attachment is heavier, especially further back from the ball ends, lifting power drops. Always follow the manual’s specifications.

A high lift capacity gives you flexibility with tools such as rotary cutters, plows, planters, and heavy box blades.

Table: Lift Capacity Details

Measurement Point	Approx. Capacity (lbs)	Example Implements
At Ball Ends	3,500	Heavy mowers, tillers, seed drills
24” Back	2,800	Cultivators, post-hole diggers

Draft / Position Control

The AGCO Allis 4650 is equipped with both draft and position control levers. Position control lets you set the implement’s height exactly.

This is useful for grading with a blade or mowing, where you want a steady, even cut. Draft control senses resistance on the implement and automatically adjusts lifting height to keep consistent soil depth, useful for plowing or cultivating.

For example, if your plow hits harder soil, the hitch raises slightly to avoid stalling. You can switch between draft and position control depending on the job.

This system makes field work easier by reducing manual adjustments and helping to protect both the tractor and implement from damage.

Top-Link Sensing (Yes/No)

Top-link sensing is a feature in some tractors that helps refine draft control. On the AGCO Allis 4650, top-link sensing is present.

This means the tractor senses pulling force through the upper link of the 3PH, improving how draft control responds in the field. When working with ground-engaging tools, top-link sensing helps adjust lift smoothly when conditions change.

If the implement pulls harder, the system raises or lowers it to keep your depth even. This results in better traction and less wear on your equipment.

3PH System Features Table

Feature	Specification	Benefit
Hitch Category	Category 2	Supports medium-heavy implements
Lift Capacity	3,500 lbs (at ball ends)	Can lift heavy implements
Draft/Position Control	Both present	Precise or automatic control
Top-Link Sensing	Yes	Responsive draft adjustments

Axles & Load Limits

The AGCO Allis 4650 Tractor is built for reliability under different load conditions. Understanding the axle capacities and final-drive type helps you use the tractor safely and efficiently.

Maximum Front-Axle Load (kg)

Front-axle load is important when operating with loaders or heavy front implements. For the AGCO Allis 4650, the maximum front-axle load depends on whether the tractor is set up with 2WD or 4WD (MFWD).

A 2WD front axle typically offers more ground clearance, measured at about 15.6 inches (39 cm). For 4WD models, the clearance is about 13.2 inches (33 cm), allowing for improved traction and load-bearing.

You should check your operator’s manual for specific limits, but tractors in this class often handle around 2,000 kg (4,409 lbs) on the front axle. This ensures safe operation with moderate to heavy attachments like loaders or front weights.

Always balance attachments to avoid overloading.

Maximum Rear-Axle Load (kg)

The rear axle handles most of the weight, especially when towing or when implements are mounted at the rear. On the AGCO Allis 4650, rear axles are designed to take higher loads compared to the front.

Expect the maximum rear-axle load to fall between 3,000 and 3,500 kg (6,614–7,716 lbs). This capacity supports heavy equipment, such as plows, disk harrows, or other trailing implements.

Proper tire inflation and correct ballast help ensure the axle can bear its stated maximum load. Exceeding these limits increases the risk of axle or tire failure.

Check the load ratings stamped on your tractor and avoid going over the recommended capacity.

Final-Drive Type

The final drive on the AGCO Allis 4650 uses a gear-type mechanism. This system is robust and simple, offering steady power transfer from the transmission to the wheels in both 2WD and MFWD models.

Gear final drives are favored for their durability and ease of maintenance. They are well-suited for fieldwork where loads can change quickly, such as when pulling tillage or engaging PTO-powered equipment.

You benefit from less slippage and more torque, essential for consistent performance in a range of soil and field conditions. Regular maintenance of the final drive, such as checking for leaks and monitoring oil levels, will help keep your tractor running smoothly.

Component	Configuration	Clearance (inches/cm)	Approximate Max Load (kg/lbs)	Notes
Front Axle	2WD	15.6 / 39	2,000 / 4,409	Best for higher clearance, light loads
Front Axle	4WD (MFWD)	13.2 / 33	2,000 / 4,409	Improved traction for heavier use
Rear Axle	All	—	3,000–3,500 / 6,614–7,716	Handles majority of towing and weight
Final Drive	All	—	—	Gear-type, durable, low maintenance

Tires & Track Options

Choosing the right tires or track options for your AGCO Allis 4650 affects your performance in fields, pastures, or construction sites. Matching tire types to your use can improve traction, reduce soil compaction, and give you better control on different surfaces.

Standard Front Tire Size (Ag / Turf / Industrial)

The AGCO Allis 4650 usually comes with agricultural tires as standard for front wheels. For the 2WD model, the standard ag front tire size is 6.50-16.

This size is good for fieldwork with its narrow width, allowing better row crop work and easier steering. For 4WD versions, standard ag front tires step up to 9.5-20.

This provides more flotation and grip needed for heavier work and muddy fields. Turf tires and industrial tires are less common but may be available as aftermarket options.

Turf tires are wider, softer, and designed to reduce damage to grass, which makes them a better fit for work on maintained lawns or golf courses. Industrial (R4) front tires are more durable and have a pattern suited for construction or loader work.

Front Tire Options Table

Tire Type	2WD Standard Size	4WD Standard Size	Application
Ag (R1)	6.50-16	9.5-20	Field, general tillage
Turf (R3)	Aftermarket	Aftermarket	Lawns, turf
Industrial (R4)	Aftermarket	Aftermarket	Loader, hard surfaces

Standard Rear Tire Size

Rear tires on the AGCO Allis 4650 play a large role in productivity because they provide traction and support most of the tractor’s weight. The typical standard ag rear tire is 13.6R28.

This radial tire offers a balance between flotation and grip, which works well for row crop operations and general farm use. Larger rear tires can be used for wet conditions or to lower ground pressure, but 13.6R28 is a good size for mixed-duty farms.

They are compatible with standard 28-inch rims, making replacements widely available. Turf rear tires are available for users who need to avoid ground disturbance.

These tires spread weight over a larger area and have a gentler tread. Industrial rear tires may also be fitted if the tractor is used regularly for loader or construction work.

Rear Tire Options List

• Ag (R1): 13.6R28 (standard)
• Turf (R3): Aftermarket option, larger footprint
• Industrial (R4): Aftermarket, for loader/construction tasks

Optional Duals / Tracks / Flotation Kits

Some users add traction or reduce compaction with optional duals, tracks, or flotation kits. Dual rear tires are common, especially for those needing extra stability or traction in muddy or loose soils.

Installing duals on the 13.6R28 rear wheel increases the tractor’s footprint, lowers ground pressure, and limits soil damage. Rubber track kits can be fitted as a custom upgrade.

These replace the rear tires or, on some kits, both front and rear, with rubber tracks. Tracks increase flotation and minimize soil compaction even more than duals.

They are most often used in extremely wet or soft conditions, such as rice fields or wet pastures. Flotation kits can include both specialized wide tires (also called “flotation tires”) designed to minimize compaction and track conversion kits.

These kits are installed for occasional use in special conditions. Not all flotation kits are universal; make sure to check compatibility before purchase.

Optional Equipment Table

Option	Fitment	Benefit	Best Use
Dual Rear Tires	Rear axle	More traction & flotation	Wet fields, pulling heavy loads
Rubber Tracks	Rear or all	Low compaction, max grip	Soft soils, rice, wet ground
Flotation Tires	Front/rear	Lower ground pressure	Loose soil, turf pasture

Summary Table: AGCO Allis 4650 Tire & Track Choices

Feature	Standard Option	Upgrade / Aftermarket	Typical Use
Front Tires (2WD)	6.50-16 ag tires	Turf/Industrial tires	Field, grass, hard surfaces
Front Tires (4WD)	9.5-20 ag tires	Turf/Industrial tires	Field, loader
Rear Tires	13.6R28 ag tires	Turf/Industrial, Duals	Field, turf, heavy loads
Track/Flotation Kits	N/A	Tracks or flotation tire kits	Wet, soft, or sensitive soils

Dimensions & Weight

You can expect the AGCO Allis 4650 to offer practical size and balanced weight for light farm work, loader tasks, and hauling. Both two-wheel drive (2WD) and four-wheel drive (4WD) versions have measurements and weights that matter for maneuverability, transport, and stability.

Feature	2WD Specification	4WD Specification
Wheelbase	83.4 in (211 cm)	82.6 in (209 cm)
Overall Length	145.4 in (369 cm)	144.6 in (367 cm)
Width (Minimum Tread)	68 in (172 cm)	68 in (172 cm)
Height to ROPS	~92.5 in (235 cm)	~92.5 in (235 cm)
Ground Clearance	~15–17 in (typical)	~15–17 in (typical)
Shipping Weight	4475–4480 lbs (2031–2032 kg)	5071 lbs (2299 kg)
Operating Weight	+ tires and fluids	+ tires and fluids

Wheelbase

The wheelbase affects how your tractor handles tight turns and rough terrain.
The AGCO Allis 4650 in 2WD has a wheelbase of 83.4 inches (211 cm).

The 4WD version measures slightly shorter at 82.6 inches (209 cm).
This compact wheelbase makes the 4650 easy to maneuver around barns, fields, and equipment yards.

You get stability without extra length, which helps prevent tipping when carrying heavy loads or using front loaders.

Overall Length

The overall length of the AGCO Allis 4650 helps you plan for equipment storage and trailer transport.
In 2WD, it measures 145.4 inches (369 cm) from the front to the rear.

The 4WD model is just a bit shorter at 144.6 inches (367 cm).
This streamlined size fits into average-sized barns, sheds, and garages.

It is manageable for most tow-behind trailers and easy to park or store. If you add front weights or attachments, the total length will increase, so plan accordingly.

Overall Width (Minimum Tread)

With an overall width of 68 inches (172 cm) at the minimum tread setting for both 2WD and 4WD, you can fit the 4650 through narrow gates and small field access paths.
This width gives you a good balance between stability in the field and the ability to work in tight areas.

You can adjust the tread width for row-crop work, but the base width is set for general utility and field use.
The size lets you move between structures or down roadways without much trouble.

Always check your tire and wheel setup, as it can slightly affect total width.

Height to ROPS / Cab

The height to the top of the ROPS (Rollover Protective Structure) is about 235 cm (92.5 inches).
This is important if you need to clear low doorways or trees while working on the farm.

The ROPS provides necessary safety if the tractor rolls, and the 4650 sits tall enough for a clear view while not limiting your access to most farm buildings.
If the tractor is fitted with a cab, check your exact model since cab installations may increase the total height.

Ground Clearance

Ground clearance keeps vital parts of the tractor safe from rocks, stumps, and field debris.
The AGCO Allis 4650 typically offers ground clearance in the 15–17 inch range, varying slightly with tire size.

This clearance is enough for general field work, orchard use, and haying without dragging or snagging on crops or trash.
You won’t have issues clearing bumps or rough ground common on farms.

Shipping Weight

You will find the shipping weight of the 2WD version is about 4475–4480 pounds (2031–2032 kg). The 4WD is heavier, up to 5071 pounds (2299 kg).

This weight includes the basic tractor without extra fluids, attachments, or operator. When loading for shipping or pickup, use this figure to plan safe transport.

The lower weight in 2WD allows easier loading on lighter trailers, while the heavier 4WD offers more traction and pulling power for field work.

Operating Weight (With Fluids)

Operating weight includes the tractor with fluids such as oil, coolant, and a full tank of fuel, as well as typical tire and ballast setups. For the AGCO Allis 4650, expect a modest increase over the shipping weight due to these fluids and additions.

Using standard setups, the operating weight climbs by several hundred pounds depending on tire choice and if wheel weights or fluid ballast are added for traction.
Always check your specific configuration if maximum weight matters for your trailer or field conditions.

Fuel & Fluids

Your AGCO Allis 4650 tractor uses several different fluids for operation and maintenance. Knowing the capacities and correct fluids helps keep the tractor running smoothly and avoids unnecessary problems.

Fuel-Tank Capacity

The fuel tank on the AGCO Allis 4650 holds 14.5 gallons (54.9 liters) of diesel. This gives you a solid range for fieldwork before needing to refuel.

Use clean, high-quality diesel fuel to avoid clogging the fuel system and causing engine problems. Check the fuel level before you start work, and top up if needed.

Running out of fuel can lead to air in the fuel lines, making restarting more difficult. For best results, keep the tank as full as possible, especially in cold weather, to prevent condensation and contamination.

A secure, correctly fitting fuel cap helps keep out dirt and water. Replace the fuel filter as recommended in the owner’s manual to protect the injection system.

DEF-Tank Capacity (If Applicable)

The AGCO Allis 4650 does not use a DEF (Diesel Exhaust Fluid) system. DEF systems are found on newer tractors that meet more recent emissions standards, but this model does not require DEF.

You do not need to add or maintain DEF for this machine. There is no DEF tank or equipment installed from the factory.

You only need to focus on maintaining the fuel system, engine oil, and hydraulic fluids.

Engine Oil Capacity

The engine of the AGCO Allis 4650 uses about 8.5 quarts (8.0 liters) of oil. For best engine performance, use the oil type and viscosity recommended in your owner’s manual, usually a high-quality diesel engine oil.

You should check the oil level before each use, with the tractor parked on a flat surface. If the level is low, add oil gradually and check again.

Oil changes should be done at regular intervals, depending on hours of use and operating conditions. Change the oil filter whenever you change the engine oil.

This helps remove particles that can wear engine parts and lowers the risk of breakdowns.

Hydraulic/Transmission Oil Capacity

The hydraulic and transmission system on the AGCO Allis 4650 has a combined capacity of 10.4 gallons (39.4 liters). Both systems use the same oil reservoir.

Use only the fluid type recommended for your model, often a universal tractor hydraulic fluid that meets manufacturer specifications. Check the fluid level regularly using the sight glass or dipstick.

Low fluid can cause hard steering, noisy operation, or slow hydraulic responses. If the fluid looks dirty or has water in it, plan a fluid change.

Replacing the hydraulic filter at the correct interval protects pumps and valves from damage. Always use clean containers and tools when working with hydraulic oil to avoid contamination.

Fluid/System	Capacity	Type	Comments
Fuel Tank	14.5 gal (54.9 L)	Diesel Fuel	Keep tank clean, avoid water/dirt
DEF Tank	Not Applicable	N/A	No DEF system on this model
Engine Oil	8.5 qt (8.0 L)	Diesel Engine Oil	Check before each use, change as needed
Hyd./Trans. Oil	10.4 gal (39.4 L)	Universal Tractor Hyd. Oil	Combined system, check and change regularly

Electrical System

The AGCO Allis 4650 tractor depends on a reliable electrical system for daily operations. Understanding the ground type, charging setup, output, battery voltage, and cold cranking amps helps you keep the tractor starting and running as it should.

Feature	Details
Ground Type	Negative
Alternator/Charging	Alternator system with electric starter
Charging Output	35–45 amps (typical range, check manual for exact)
Battery Voltage	12 volts
Battery CCA Rating	600–800 CCA (check battery label/manual for minimum recommended rating)
Starter	Electric

Ground Type (Negative / Positive)

Most AGCO Allis 4650 tractors use a negative ground electrical system. Negative ground means the negative battery terminal is connected to the tractor’s chassis or frame.

This setup is common because it helps reliability and safety. When replacing electrical parts or diagnosing faults, always confirm you have the right ground type.

Connecting parts incorrectly can damage components or cause electrical shorts. Make sure cable connections stay clean and tight.

If corrosion or looseness appears where the ground strap connects to the frame, clean and tighten the connection. This keeps the electrical system working well and avoids hard-starting or charging problems.

Negative ground is important when jump-starting, installing new batteries, or adding accessories. Use only parts and wiring made for negative ground systems to avoid malfunctions.

Alternator / Charging System

The AGCO Allis 4650 uses a modern alternator charging system combined with an electric starter. The alternator generates electrical power while the engine is running.

It charges the battery and supplies electricity to systems like lights, controls, and instruments. The electric starter motor uses battery power to turn the engine for starting.

Once started, the alternator quickly takes over, keeping the battery charged and running the electrical system. Alternators are durable but can wear out over time.

Symptoms of a failing alternator include dim lights, weak starting, or warning lights on the dash. Regular checks can prevent problems, especially before heavy use.

Replacing the alternator or starter requires matching them with the correct specifications. Using the wrong parts can lead to poor performance or failure.

Charging Output (Amps)

The charging output for this tractor’s alternator usually falls in the range of 35 to 45 amps. The exact number may differ with the alternator installed, so it’s best to check your owner’s manual or look for a label on the alternator.

Charging output is important because it tells you how much electricity the alternator can send to the battery and electrical system. If you add high-draw accessories like extra lights, you may want to use an alternator with higher output.

If the alternator can’t keep up, the battery may drain during use, causing starting problems or even shut-downs. When testing alternator output, use a digital meter to check amperage and voltage at the battery with the engine running.

Results below the rated output could mean a worn or faulty alternator.

Battery Voltage

The AGCO Allis 4650 comes with a 12-volt battery as standard. This voltage level is enough to power the starter motor, engine controls, and all accessories.

Use only a high-quality 12-volt battery, as lower or higher voltage batteries may damage the electrical system or fail to start the engine. Installing batteries with the wrong voltage can burn out the starter and electronic parts.

Check voltage with a meter: a healthy battery at rest should show about 12.6 volts when fully charged. If you see numbers below 12 volts, the battery may be weak or near the end of its life.

Regularly inspect battery terminals for corrosion, and keep cable connections tight. A clean, fully-charged battery helps the tractor start easily even in cold or wet conditions.

Battery CCA Rating

Cold Cranking Amps (CCA) measure the battery’s ability to deliver enough power to the starter at low temperatures. For the AGCO Allis 4650, a minimum of 600–800 CCA is usually recommended to ensure fast starts in all weather.

Choose a replacement battery that meets or exceeds this CCA range. Using a battery with lower CCA can cause slow or failed starts, especially in winter.

Higher CCA batteries may help if the tractor is used in very cold climates. CCA is always labeled on a battery.

Before buying, check both the rating and the battery’s physical size to make sure it fits your battery tray. Keep battery terminals clean and free of rust for peak cold-cranking performance every time you start the engine.

Total Cost of Ownership Metrics

The AGCO Allis 4650 tractor requires careful budgeting for upkeep, fuel, and depreciation. Understanding these metrics helps you make informed choices about long-term cost and value.

Recommended Service Intervals

For the AGCO Allis 4650, regular maintenance is important to ensure reliable operation. Engine oil and filter should be changed every 100 hours.

Transmission and hydraulic fluid should be replaced every 300 hours or at least once per year. Inspect the air filter every 50 hours, especially in dusty conditions, and clean or replace as needed.

Grease all lubrication points every 50 hours to prevent wear on moving parts. Replace the fuel filter every 200 hours.

A typical maintenance log will look like this:

Task	Interval
Engine oil & filter	100 hours
Air filter (inspect)	50 hours
Transmission fluid	300 hours/annual
Fuel filter	200 hours
Greasing	50 hours

Estimated Annual Maintenance Cost

Annual maintenance costs for the AGCO Allis 4650 depend on hours of use and local parts/labor rates. Assuming average use of 500 hours per year, expect to spend on fluids, filters, and minor parts.

Typical yearly costs break down like this:

• Engine oil and filters: $150
• Air, fuel, and hydraulic filters: $120
• Transmission/hydraulic fluids: $200
• Grease and miscellaneous lubricants: $40
• Labor (if not self-performed): $300
• Miscellaneous repairs/parts: $150

The total estimated annual maintenance cost is about $600-$900 if you do most work yourself, or up to $1,200 with professional labor.

Depreciation Curve (% Per Year)

The AGCO Allis 4650, like most utility tractors, loses value fastest in its early years. New, this tractor cost about $18,800 in 1997.

Annual depreciation rates are:

Years Owned	Depreciation (% per year)	Cumulative Value Remaining (%)
1-3	10-12%	60-75%
4-7	7-9%	45-60%
8+	3-5%	30-45%

After about 10 years, depreciation slows. Well-maintained units often keep 30-40% of their original value beyond 15 years, especially if hours are moderate.

Fuel Consumption @ Rated Load (L hr⁻¹)

The AGCO Allis 4650 tractor uses a SLH 3.1L 3-cylinder diesel engine. Fuel consumption at rated load (maximum power output) averages about 7.0 to 7.5 liters per hour.

In light or medium tasks, you can expect a lower rate, around 5-6 liters per hour. Actual fuel use depends on field conditions, load, and maintenance.

Metric	Value/Range
Engine oil & filter change interval	100 hours
Estimated annual maintenance cost	$600-$1,200
Depreciation first 3 years	10-12% per year
Depreciation after 8 years	3-5% per year
Fuel usage at rated load	7.0–7.5 L/hr