AGCO GT55 Tractor 56 hp Specifications, Features, and Performance Overview

AGCO GT55 Tractor 56 hp

The AGCO GT55 is a utility tractor from the GT series, built for reliability and efficiency from 2004 to 2007. With a 56 horsepower turbocharged diesel engine, it provides strength for demanding jobs across fields and farms.

Area	Key Specifications/Details
Production Years	2004 – 2007
Engine	Turbocharged diesel, 56 hp
PTO	53 hp (claimed), 58.89 hp (tested), open center
Transmission	Synchronized shuttle, typically 8F/8R gears
Steering	Hydrostatic power steering
Brakes	Wet disc
Hydraulics	Open center, 14 GPM pump flow
3-Point Hitch	Category I/II, adjustable draft control
Axle	MFWD (mechanical front-wheel drive), optional 2WD
Tires	Rear: 16.9-28 R1, Front: 9.5-24 R1
Dimensions (approx.)	138 in (length), 67 in (width), 97 in (height)
Weight	4,900 lbs base
Fuel Tank	22 gallons
Electrical	12-volt, 55-amp alternator
Cost When New (est.)	$16,500 – $23,000 (varied by features/year)

Production & Identification

You can identify the AGCO GT55 by its labeling as part of the GT series, which ran from 2004 to 2007. The model number is often found on the hood decal.

This tractor was manufactured for North American markets and was marketed as a durable, mid-size utility machine. AGCO offered the GT55 in both two-wheel drive (2WD) and mechanical front-wheel drive (MFWD) versions, letting you pick the setup that fits your land conditions.

Your serial number location is usually found on the frame, below the operator’s seat. This makes it easy to verify production year and specific manufacturing details.

Knowing your serial number can also help when you order parts or schedule service.

Engine Specifications

The AGCO GT55 is equipped with a 56 horsepower turbocharged diesel engine. The engine is a 4-cylinder, liquid-cooled model offering reliable performance under heavy loads.

This tractor produces a peak torque of 185 lb-ft at 2200 RPM. The dry-type air cleaner and 16:1 compression ratio ensure consistent and clean combustion.

The engine’s displacement is about 2.5 liters, which means you get strong pulling power and efficiency. Routine maintenance is simple, with easy access to oil, filters, and other vital components.

The robust engine construction supports long hours and high workloads during planting, tillage, or hauling.

Power Take-Off (PTO)

The PTO system on the AGCO GT55 delivers 53 horsepower as claimed by AGCO, and up to 58.89 horsepower in independent tests. It’s designed with an open center system for consistent performance.

You get a rear PTO, which supports most agricultural implements, including mowers, balers, and rotary tillers. The engagement is independent and works smoothly even under load, letting you start or stop attachments easily.

The running speed is 540 RPM. Controls are conveniently positioned, reducing strain during repeated use.

Always check and match PTO shaft speeds with your implements for safe operation.

Transmission & Drivetrain

The GT55 usually features a synchronized shuttle transmission, generally with 8 forward and 8 reverse gears. The shuttle lever, mounted near the steering column, lets you switch smoothly between forward and reverse.

Your transmission is mechanically reliable, with straightforward controls and clear gear selections. The standard MFWD drivetrain delivers better traction in muddy or uneven fields, but a 2WD version was also available for lighter-duty work.

Clutch engagement is firm but comfortable. Regular maintenance on linkages and fluids leads to years of service.

The robust rear differential and axle housing ensure durability under constant heavy loads.

Steering & Brakes

This tractor uses hydrostatic power steering, which offers light steering effort and good control even at low speeds or with heavy front-loader attachments. You can turn easily in tight spaces or when working around obstacles.

Wet disc brakes are standard, providing reliable stopping power with minimal maintenance. The sealed design helps keep dirt and water out, resulting in long brake life.

You have independent left and right brake pedals, allowing for sharp turns and improved maneuverability when needed. Pedal travel is smooth, so you can stop or steer with less fatigue during long workdays.

Cab & Operator Station

The AGCO GT55 typically comes as an open station model, offering good visibility all around the tractor. The operator’s platform is wide and has a flat floor to reduce tripping and make it easier to step on and off.

Hand and foot controls are positioned for comfort and reach. The seat is adjustable and supports long hours in the field.

There’s a simple instrument panel with RPM, fuel, and temperature gauges for at-a-glance monitoring. Optional canopies or simple weather shields are available for extra comfort in sun or light rain.

Hydraulics

The hydraulic system has an open center design and delivers about 14 gallons per minute (GPM) of pump flow. This is enough to run standard loaders, backhoes, and 3-point implements with ease.

You get at least one rear hydraulic remote (with some models offering two), allowing use of hydraulic rams or attachments. Hydraulic controls are straightforward and reliable, placed near the seat for convenience.

Pressure regulation is consistent, supporting smooth implement operation and quick response times. Maintenance involves regular fluid checks and occasional filter changes to keep the hydraulics working properly.

Three-Point Hitch (3PH)

The three-point hitch on the GT55 is a Category I/II type, allowing you to use a broad selection of implements like plows, cultivators, and rotary cutters. This flexibility makes it easier to switch between heavy and light-duty tools.

Draft and position controls are standard, letting you adjust the working depth and height of your attachments while moving. This gives more precision and efficiency in the field.

The hitch lift capacity is suitable for most mid-sized implements. Sturdy lift arms with adjustable ends make connecting and disconnecting gear quicker and less frustrating.

Axles & Load Limits

The AGCO GT55 offers both 2WD and MFWD axle configurations. Most GT55 tractors in the U.S. came with MFWD, supporting better grip and handling on soft or uneven soil.

The axles are heavy-duty and designed to withstand regular stress from loaders, heavy implements, or towing wagons. Payload limits let you haul several tons, depending on ballast and axle setup.

You must be aware of the tractor’s maximum allowable load on each axle. Staying within these limits prevents premature wear or damage, especially when using front-end loaders or large rear implements.

Tires & Track Options

The standard tire sizes are typically 16.9-28 for rear (R1 agricultural) and 9.5-24 for front, giving good traction in most conditions. You can swap to R3 (turf) or R4 (industrial) tires for different types of work or soil.

R1 tires are best for cultivated fields and general farm use, while R3s help limit turf damage on lawns. Optional tire choices let you tailor the tractor to your main tasks or terrain.

The wheels are adjustable for width, allowing you to match your row spacing or improve stability. There is no factory track option, but dual wheel sets can be fitted for added flotation in soft soil.

Dimensions & Weight

The AGCO GT55 is about 138 inches long, 67 inches wide, and 97 inches tall at the top of the ROPS (rollover protection structure). The base weight is around 4,900 pounds with typical fluids and no extra ballast.

Wheelbase length aids stability on slopes or when carrying heavy rear or front implements. You can add wheel or suitcase weights for extra traction and balance when needed.

The moderate size makes this tractor easy to maneuver in barns or tight fields. It still has the bulk needed for pulling or powering heavy implements.

Fuel & Fluids

Your fuel tank has a 22-gallon capacity, enough for many hours of operation without refueling. Diesel is the required fuel, and it’s important to use clean, high-quality fuel to avoid injector and pump problems.

Engine oil, hydraulic fluid, and coolant levels should be checked daily or before long jobs. Recommended oil grades and fluid types are listed in your owner’s manual.

Fluid change intervals are typically every 150 to 250 operating hours, depending on conditions. Proper maintenance of these fluids ensures good performance and longer engine and component life.

Electrical System

The GT55 uses a simple but effective 12-volt electrical system. It comes standard with a 55-amp alternator, which supports lights, gauges, and any powered accessories you add, such as a loader joystick or extra work lights.

Starting uses a heavy-duty battery, placed for easy access during cold weather or routine service. Fuses and relays are grouped together for quick checks or replacement.

All wiring is protected with harnessing and routing for weather resistance. Standard lighting includes headlights, rear work lights, and basic indicator lights on the console.

Total Cost of Ownership Metrics

Initial purchase price for the AGCO GT55 ranged from about $16,500 to $23,000, depending on options, year, and dealer location.

Used models usually cost less but may need more maintenance.

Routine operating expenses include diesel, oils, hydraulic fluid, and periodic wearable parts like filters, belts, and tires.

Annual costs for basic maintenance are moderate compared to larger tractors.

Resale value remains steady because of reliable performance and AGCO support.