Challenger MT945B
Power
430 hp
Production
2007-2009
Engine
Turbocharged aftercooled diesel, 6-cylinder 24-valve
Transmission
Full power shift
Weight
39266 lbs [17811 kg]
Drive
4WD
From the same series:
Introduction
Challenger MT945B: High-Capacity Articulated Four-Wheel Drive Tractor
The Challenger MT945B is a heavy-duty articulated four-wheel drive tractor produced by AGCO in Jackson, Minnesota, between 2007 and 2009. Designed for large-scale agricultural operations, this machine focuses on high-torque performance and traction for heavy tillage and field tasks.
Engine and Performance
The tractor is powered by a 6-cylinder, 24-valve, liquid-cooled turbocharged aftercooled diesel engine with a displacement of 15.1 liters (923 cubic inches). It delivers a rated power of 430 horsepower (320.7 kW) at 2100 RPM. The engine features an 18:1 compression ratio and utilizes a dual dry element air cleaner system to ensure longevity under dusty field conditions.
Transmission and Drivetrain
The MT945B is equipped with a full power shift transmission providing 16 forward and 4 reverse gears, utilizing hydraulic wet disc clutches for smooth shifting under load. The drivetrain features four-wheel drive with articulated power steering and inboard planetary final drives. Braking is handled by wet disc brakes, and an optional electro-hydraulic differential lock is available for both the front and rear axles to enhance traction in difficult terrain.
Hydraulics and Hitch
The hydraulic system is a closed-center pressure-flow compensated (PFC) design, providing a total flow of 43.5 gpm (164.6 lpm) at a system pressure of 2900 psi (200.0 bar). The tractor offers 4 to 6 rear hydraulic valves. The rear hitch, available in category IV or IVN/III configurations, provides a lift capacity of 19,500 lbs (8,845 kg).
Dimensions and Operator Environment
This tractor has a wheelbase of 155.5 inches (394 cm) and an overall width of 200 inches (508 cm), riding on 710/70R42 tires. The shipping weight is approximately 39,266 lbs (17,811 kg), with a maximum weight capacity of 50,000 lbs (22,680 kg). The operator platform features a standard cab equipped with air conditioning to maintain productivity during long operational hours.
Conclusion
The Challenger MT945B represents a high-capacity solution for large farming enterprises requiring significant power, structural durability, and high-flow hydraulic capabilities for modern implement operation.
Production Information of Challenger, MT945B
- Four-wheel Drive (4WD) tractor
- Built in Jackson, Minnesota, USA
| Manufacturer | Challenger (a part of AGCO) |
|---|
Dimension and Tires Information of Challenger, MT945B
| Ground clearance | 17.5 inches [44 cm] |
|---|---|
| Wheelbase | 155.5 inches [394 cm] |
| Shipping weight | 39266 lbs [17811 kg] |
| Height (cab) | 151 inches [383 cm] |
| Length | 298 inches [756 cm] |
| Front axle | 5.71 inch diameter [145 mm] |
| Max weight | 50000 lbs [22680 kg] |
| Width | 200 inches [508 cm] |
| Rear axle | 5.71 inch diameter [145 mm] |
| Ag front | 710/70R42 |
|---|---|
| Ag rear | 710/70R42 |
Engine Specifications of Challenger, MT945B
- Liquid-cooled inline
- Turbocharged aftercooled diesel
- 6-cylinder 24-valve
| Rated RPM | 2100 |
|---|---|
| Displacement | 923 ci [15.1 L] |
| Power | 430 hp [320.7 kW] |
| Bore/Stroke | 5.402x6.748 inches [137 x 171 mm] |
| Compression | 18:1 |
| Air cleaner | Dual dry element |
| Emissions | Tier III |
Transmission Information of Challenger, MT945B
Transmission variants 1
| Type | Full power shift |
|---|---|
| Gears | 16 forward and 4 reverse |
| Clutch | Hydraulic wet discs |
Mechanical Specs of Challenger, MT945B
- Four-wheel drive
- Wet disc brakes
- Articulated power steering
- Cab standard with air-conditioning.
| Final drives | Inboard planetary |
|---|---|
| Differential lock | Electro-hydraulic front and rear optional |
Power Information of Challenger, MT945B
| Rear PTO(optional) | Independent |
|---|---|
| Rear PTO Type | 1000 (1.75) |
| Engine RPM | 1000@2000 |
Hydraulics Specifications of Challenger, MT945B
| Type | Closed center PFC |
|---|---|
| Type(optional) | 59 gpm [223.3 lpm] |
| Total flow | 43.5 gpm [164.6 lpm] |
| Pressure | 2900 psi [200.0 bar] |
| Rear valves | 4 to 6 |
Three-Point Hitch of Challenger, MT945B
| Rear Type(optional) | IVN/III |
|---|---|
| Rear Type(optional) | IV |
| Rear lift | 19500 lbs [8845 kg] |
Electrical System of Challenger, MT945B
| Ground | Negative |
|---|---|
| Battery CCA | 1000 |
| Batteries | 4 |
| Charging system | Alternator |
| Battery volts | 12 |
| Charging amps | 185 |
Where it sits
With 430 HP, the Challenger MT945B sits just below MT945C (440 HP) in Challenger's range. Its power puts it in the 98th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the Challenger MT945B have?
The Challenger MT945B delivers 430 HP.
What years was the Challenger MT945B produced?
The Challenger MT945B was produced in 2007-2009.
What engine does the Challenger MT945B have?
The Challenger MT945B is powered by a Turbocharged aftercooled diesel, 6-cylinder 24-valve engine.
What transmission does the Challenger MT945B use?
The Challenger MT945B uses a Full power shift transmission.
How much does the Challenger MT945B weigh?
The Challenger MT945B weighs 39266 lbs [17811 kg].
Is the Challenger MT945B 4WD?
The Challenger MT945B is available in 4WD.