Challenger MT545B
Power
143 hp
Production
2004-2011
Engine
Turbocharged diesel, 6-cylinder
Transmission
AutoPower IV
Drive
2WD/4WD
From the same series:
Introduction
Challenger MT545B Row-Crop Tractor
The Challenger MT545B is a row-crop tractor manufactured in Beauvais, France, between 2004 and 2011. Designed for versatile agricultural operations, this model is part of a series that includes the MT535B and MT555B, sharing engineering commonalities with the Massey Ferguson 7480.
Engine and Performance
The tractor is powered by a Caterpillar 3056C engine, a 6.0-liter, 6-cylinder turbocharged diesel unit. It delivers a rated power of 143 hp (106.6 kW) at 2200 RPM. The engine features a liquid-cooling system with a viscous fan and complies with Tier II emission standards, ensuring reliable performance for demanding field work.
Transmission and Drivetrain
The MT545B offers three distinct transmission configurations: the AutoPower IV (32-speed partial power shift), the AutoPower VI (24-speed partial power shift), and the TechStar CVT, which provides infinite forward and reverse speeds. All configurations utilize an electro-hydraulic wet disc clutch and are available in two- or four-wheel drive variants, supported by electro-hydraulic differential locks on both the front and rear axles.
Hydraulics and PTO
Equipped with a closed-center pressure flow compensating (PFC) hydraulic system, the tractor provides a total flow of 29 gpm (109.8 lpm) at a pressure of 2900 psi. The rear PTO is independent, featuring an electro-hydraulic wet disc clutch with standard 540/1000 RPM speeds, and optional 540/540E/1000 RPM capabilities.
Cab and Ergonomics
The standard operator environment consists of a cab equipped with heating and air conditioning. To enhance operator comfort during long hours of operation, optional features include pneumatic cab suspension and automatic climate control.
Hitch and Dimensions
The rear three-point hitch is a Category II/III type, providing a lift capacity of 9,391 lbs (4,259 kg) at 24 inches behind the lift point. The tractor has a wheelbase of 112.1 inches and a total length of 168.5 inches. Various axle configurations, including bar and flange rear axles, allow for adjustable rear tread widths between 55.5 and 116.3 inches to suit specific row-crop requirements.
Conclusion
The Challenger MT545B is a robust, highly configurable row-crop tractor suited for mixed farming operations. Its combination of multiple transmission choices and flexible hydraulic capabilities makes it a versatile tool for operators requiring precision in field tasks.
Production Information of Challenger, MT545B
- The Challenger MT545B is similar to the Massey Ferguson 7480.
- Row-Crop tractor
- Built in Beauvais, France
| Manufacturer | Challenger (a part of AGCO) |
|---|
Dimension and Tires Information of Challenger, MT545B
- Flange rear axle
| Wheelbase | 112.1 inches [284 cm] |
|---|---|
| Height (cab) | 112.8 inches [286 cm] |
| Width | 81.1 inches [205 cm] |
| 4WD Front tread | 61.2 to 89.2 inches [155 to 226 cm] |
| Length | 168.5 inches [427 cm] |
| Clearance (drawbar) | 15.4 inches [39 cm] |
| Bar rear axle | 3.2 by 82 inches [81 by 2082 mm] |
| Bar rear axle | 3.2 by 113 inches [81 by 2870 mm] |
| 2WD Front tread | 73.2 to 96 inches [185 to 243 cm (wide row-crop axle)] |
| 2WD Front tread | 64.1 to 83 inches [162 to 210 cm] |
| Rear tread | 56.9 to 90.6 inches [144 to 230 cm (flange)] |
| Rear tread | 55.5 to 116.3 inches [140 to 295 cm (long bar)] |
| Rear tread | 55.5 to 91 inches [140 to 231 cm (short bar)] |
| Ag front | 11.00-16 (2WD) |
|---|---|
| Ag front(optional) | 480/70R28 |
| Ag rear | 580/70R38 |
Engine Specifications of Challenger, MT545B
- Caterpillar 3056C
- Liquid-cooled vertical inline
- 6-cylinder
- Turbocharged diesel
| Coolant capacity | 26.92 qts [25.5 L] |
|---|---|
| Oil capacity | 15.3 qts [14.5 L] |
| Power | 143 hp [106.6 kW] |
| Compression | 17.5:1 |
| Air cleaner | Dual paper elements |
| Displacement | 365.2 ci [6.0 L] |
| Emissions | Tier II |
| Cooling system | Viscous fan |
| Bore/Stroke | 3.937x5.00 inches [100 x 127 mm] |
| Starter volts | 12 |
| Idle RPM | 800-2350 |
| Rated RPM | 2200 |
Transmission Information of Challenger, MT545B
Transmission variants 1
- Four synchronized gears (1-4) in two synchronized ranges (low/high) with a four-speed (A-D) power shift on the left-hand power shuttle lever.
| Transmission | AutoPower IV |
|---|---|
| Clutch | Hydraulic wet disc |
| Type | Partial power shift |
| Gears | 32 forward and reverse |
Transmission variants 2
- Four gears with six power shift ranges. The AutoPower VI became acailable in 2005.
| Transmission | AutoPower VI |
|---|---|
| Type | Partial power shift |
| Gears | 24 forward and reverse |
Transmission variants 3
| Transmission | TechStar CVT |
|---|---|
| Oil capacity | 59.2 qts [56.0 L] |
| Type | Continuously variable transmission |
| Gears | Infinite forward and reverse (2-range) |
- 32-speed partial power shift
- 24-speed partial power shift
- Continuously variable transmission
Mechanical Specs of Challenger, MT545B
- Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control.
- Two- or four-wheel drive
- Hydraulic wet disc brakes
- Power steering
| Final drives | Inboard planetary |
|---|---|
| Trailer brakes(optional) | Hydraulic |
| Differential lock | Electro-hydraulic front and rear |
Power Information of Challenger, MT545B
| Rear PTO | Independent |
|---|---|
| Engine RPM | 540@1980 |
| Engine RPM(optional) | 540/540E/1000 |
| Clutch | Electro-hydraulic wet disc |
| Clutch(optional) | 1000E@1548 |
| Clutch(optional) | 540E@1533 |
| Rear PTO Type | 540/1000 (standard) |
Hydraulics Specifications of Challenger, MT545B
| Type | Closed center pressure flow compensating (PFC) |
|---|---|
| Rear valves | 2 to 4 |
| Pressure | 2900 psi [200.0 bar] |
| Capacity | 18.5 gal (AutoPower) [70.0 L] |
| Total flow | 29 gpm [109.8 lpm] |
| Total flow(optional) | 26.4 gal (CVT) [99.9 L] |
Three-Point Hitch of Challenger, MT545B
| Rear Type | II/III |
|---|---|
| Front lift | 5,500 lbs [2494 kg] |
| Front Hitch | Optional |
| Rear lift (at 24"/610mm) | 9,391 lbs [4259 kg] |
| Rear lift (at 24"/610mm)(optional) | 11,200 lbs (CVT) [5080 kg] |
Electrical System of Challenger, MT545B
| Ground | Negative |
|---|---|
| Battery CCA | 420 |
| Batteries | 2 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 120 |
Where it sits
With 143 HP, the Challenger MT545B sits between MT545 (133 HP) and MT555B (153 HP) in Challenger's range. Its power puts it in the 79th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the Challenger MT545B have?
The Challenger MT545B delivers 143 HP.
What years was the Challenger MT545B produced?
The Challenger MT545B was produced in 2004-2011.
What engine does the Challenger MT545B have?
The Challenger MT545B is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the Challenger MT545B use?
The Challenger MT545B uses a AutoPower IV transmission.
Is the Challenger MT545B 4WD?
The Challenger MT545B is available in 2WD/4WD.