Challenger MT645E
Power
240 hp
Production
2014-2020
Engine
Turbocharged with air-to-air intercooler diesel, 6-cylinder 24-valve
Transmission
Techstar CVT
Weight
23810 lbs [10800 kg]
Drive
4WD
From the same series:
Introduction
Challenger MT645E Row-Crop Tractor
The Challenger MT645E is a high-capacity row-crop tractor produced by AGCO in Jackson, Minnesota, between 2014 and 2020. Designed for large-scale agricultural operations, this machine integrates advanced powertrain technology with a chassis engineered for heavy-duty field work.
Engine and Powertrain
The tractor is powered by an 8.4-liter, 6-cylinder AGCO POWER diesel engine. This unit features 24 valves, a turbocharger with an air-to-air intercooler, and Selective Catalytic Reduction (SCR) technology to meet Tier IV emission standards. It delivers a rated power of 240 hp, with a maximum power output reaching 270 hp at 2100 rated RPM.
Transmission and Drivetrain
The MT645E is equipped with the Techstar CVT, a continuously variable transmission that provides infinite forward and reverse speed control across two ranges. The drivetrain includes four-wheel drive as standard, complemented by an electro-hydraulic differential lock and hydrostatic power steering, ensuring consistent traction and maneuverability.
Hydraulics and Hitch
The hydraulic system utilizes a Closed Center Load Sensing (CCLS) design, delivering a pump flow of 54 gpm (204.4 lpm) at a pressure of 2900 psi. It supports four to six valves. The rear hitch, configured for category III/IVN, offers a lift capacity of 26,455 lbs at the hitch ends. The tractor also features an independent rear PTO capable of 1000/1000E speeds.
Operator Environment
The standard configuration includes an air-conditioned cab. To enhance operator comfort during long working days, an optional OptiRide Plus hydraulic cab suspension system is available. The tractor is factory-prepared for AgCommand telemetry and the AUTO-GUIDE 3000 guidance system.
Conclusion
The Challenger MT645E is a robust, high-horsepower tractor tailored for demanding row-crop applications. Its combination of high-flow hydraulics, a versatile CVT transmission, and modern precision farming readiness makes it a suitable asset for large-scale farming enterprises requiring reliable performance.
Production Information of Challenger, MT645E
- Row-Crop tractor
- Built in Jackson, Minnesota, USA
| Manufacturer | Challenger (a part of AGCO) |
|---|
Dimension and Tires Information of Challenger, MT645E
| Wheelbase | 122 inches [309 cm] |
|---|---|
| Bar rear axle | 4.33 by 105 inches [109 by 2667 mm] |
| Shipping weight | 23810 lbs [10800 kg] |
| Length | 218.6 inches [555 cm] |
| Bar rear axle | 4.33 by 118 inches [109 by 2997 mm] |
| Height (cab) | 141 inches [358 cm] |
Engine Specifications of Challenger, MT645E
- AGCO POWER
- Liquid-cooled
- Turbocharged with air-to-air intercooler diesel
- 6-cylinder 24-valve
| Rated RPM | 2100 |
|---|---|
| Displacement | 512.6 ci [8.4 L] |
| Emission control | Selective catalytic reduction (SCR) |
| Bore/Stroke | 4.37x5.71 inches [111 x 145 mm] |
| Starter volts | 12 |
| Starter | Electric |
| Maximum Power | 270 hp [201.3 kW] |
| Power | 240 hp [179.0 kW] |
| Emissions | Tier IV |
Transmission Information of Challenger, MT645E
Transmission variants 1
| Transmission | Techstar CVT |
|---|---|
| Type | Continuously variable transmission (CVT) |
| Gears | Infinite forward and reverse (2-range) |
Mechanical Specs of Challenger, MT645E
- Four-wheel drive
- Cab standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000
- Hydraulic wet disc brakes
| Differential lock | Electro-hydraulic |
|---|---|
| Steering | Hydrostatic power |
Power Information of Challenger, MT645E
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000/1000E (1.75) |
Hydraulics Specifications of Challenger, MT645E
| Type | Closed center load sensing (CCLS) |
|---|---|
| Pump flow | 54 gpm [204.4 lpm] |
| Pressure | 2900 psi [200.0 bar] |
| Valves | 4 to 6 |
Three-Point Hitch of Challenger, MT645E
| Rear Type | III/IVN |
|---|---|
| Rear Type(optional) | Cat 4 (optional) |
| Rear Type(optional) | Cat 3 Heavy Duty (optional) |
| Rear lift (at ends) | 26455 lbs [11999 kg] |
| Drawbar | Cat. 3 |
Electrical System of Challenger, MT645E
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging volts | 12 |
| Charging system | Alternator |
| Charging amps | 240 (twin 120A) |
Where it sits
With 240 HP, the Challenger MT645E sits just below MT655E (265 HP) in Challenger's range. Its power puts it in the 87th percentile of 2010s models in our database (2476 machines).
Frequently asked questions
How much horsepower does the Challenger MT645E have?
The Challenger MT645E delivers 240 HP.
What years was the Challenger MT645E produced?
The Challenger MT645E was produced in 2014-2020.
What engine does the Challenger MT645E have?
The Challenger MT645E is powered by a Turbocharged with air-to-air intercooler diesel, 6-cylinder 24-valve engine.
What transmission does the Challenger MT645E use?
The Challenger MT645E uses a Techstar CVT transmission.
How much does the Challenger MT645E weigh?
The Challenger MT645E weighs 23810 lbs [10800 kg].
Is the Challenger MT645E 4WD?
The Challenger MT645E is available in 4WD.