Challenger MT645D
Power
240 hp
Production
2011-2013
Engine
Turbocharged air-to-air intercooled diesel, 6-cylinder
Transmission
Techstar CVT
Weight
33070 lbs [15000 kg]
Drive
4WD
From the same series:
Introduction
Challenger MT645D Row-Crop Tractor
The Challenger MT645D is a row-crop tractor manufactured by AGCO in Jackson, Minnesota, between 2011 and 2013. This machine belongs to the MT600 series and is engineered for high-output agricultural operations requiring precise control and significant power.
Engine and Performance
The tractor is powered by an 8.4-liter, 6-cylinder liquid-cooled diesel engine. It utilizes a turbocharged, air-to-air intercooled induction system and electronic high-pressure common rail fuel injection to produce a gross power output of 240 hp (179.0 kW), with a maximum power rating of 270 hp (201.3 kW). The engine complies with Interim Tier IV emission standards through the use of selective catalytic reduction (SCR) technology.
Transmission and Drive
Power is delivered through a Techstar continuously variable transmission (CVT), which allows for infinite forward and reverse speeds without the need for traditional gear shifting. The drivetrain features a four-wheel-drive configuration with inboard planetary final drives and an electro-hydraulic differential lock to manage traction in varied field conditions.
Hydraulics and Hitch
The MT645D utilizes a closed-center load-sensing (CCLS) hydraulic system, delivering a total flow of 46 gpm (174.1 lpm) at a pressure of 2900 psi. It is equipped with 4 to 6 remote valves. The rear three-point hitch is category III, capable of lifting 22,760 lbs, while an optional front hitch provides an additional lifting capacity of 11,000 lbs.
Operator Environment and Dimensions
The tractor features a standard cab equipped with air-conditioning. Optional operator comfort enhancements include the OptiRide Plus hydraulic suspension and the AGCOMMAND telematics system. The machine has a wheelbase of 122 inches and a maximum operating weight of 33,070 lbs, supported by a 4WD Quadlink front axle suspension system.
Conclusion
The Challenger MT645D is a heavy-duty row-crop tractor designed for professional agricultural environments. Its combination of high-capacity hydraulics, infinite speed control via the Techstar CVT, and robust lifting capabilities makes it suitable for intensive soil preparation and large-scale implement management.
Production Information of Challenger, MT645D
- Original price was $263,455 in 2013
- Row-Crop tractor
- Built in Jackson, Minnesota, USA
| Manufacturer | Challenger (a part of AGCO) |
|---|
Dimension and Tires Information of Challenger, MT645D
| Front axle | 4WD Quadlink Suspension |
|---|---|
| Wheelbase | 122 inches [309 cm] |
| Max weight | 33070 lbs [15000 kg] |
| Shipping weight | 24250 lbs [10999 kg] |
| Length | 215.7 inches [547 cm] |
| Rear axle | 4.33 by 105 inches [109 by 2667 mm] |
| Front axle | 4WD |
| Height (cab) | 141 inches [358 cm] |
| Rear axle | 4.33 by 118 inches [109 by 2997 mm] |
| Standard tires (ag) | Front: 480/70R34. Rear: 520/85R46 |
|---|
Engine Specifications of Challenger, MT645D
- Liquid-cooled
- 6-cylinder
- Turbocharged air-to-air intercooled diesel
| Starter volts | 12 |
|---|---|
| Starter | Electric |
| Emission control | Selective catalytic reduction (SCR) |
| Fuel system | Electronic high-pressure common rail |
| Maximum Power | 270 hp [201.3 kW] |
| Displacement | 513.8 ci [8.4 L] |
| Emissions | Interim Tier IV |
| Power (gross) | 240 hp [179.0 kW] |
| Bore/Stroke | 4.370x5.709 inches [111 x 145 mm] |
| Rated RPM | 2100 |
| Compression | 16.7:1 |
| Pre-heating | Thermostart |
Transmission Information of Challenger, MT645D
Transmission variants 1
| Transmission | Techstar CVT |
|---|---|
| Type | Continuously variable transmission |
| Gears | Infinite forward and reverse |
Mechanical Specs of Challenger, MT645D
- Four-wheel drive
- Hydraulic wet disc brakes
- Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)
| Steering | Hydrostatic power |
|---|---|
| Final drives | Inboard planetary |
| Trailer brakes | Pneumatic (optional) |
| Differential lock | Electro-hydraulic |
Power Information of Challenger, MT645D
| Rear PTO | Independent |
|---|---|
| Engine RPM | 540E@1577 |
| Engine RPM(optional) | 540E/1000/1000E (optional) |
| Clutch | Electro-hydraulic |
| Clutch(optional) | 1000E@1605 |
| Rear PTO Type | 1000/1000E (1.75) |
Hydraulics Specifications of Challenger, MT645D
| Type | Closed center load sensing (CCLS) |
|---|---|
| SCV flow | 26.4 gpm [99.9 lpm] |
| Valves | 4 to 6 |
| Capacity | 29.1 gal [110.1 L] |
| Total flow | 46 gpm [174.1 lpm] |
| Pressure | 2900 psi [200.0 bar] |
Three-Point Hitch of Challenger, MT645D
| Rear Type | III |
|---|---|
| Drawbar | Cat. 3 |
| Front lift (at ends) | 11000 lbs [4989 kg] |
| Rear lift | 22760 lbs [10323 kg] |
| Rear lift(optional) | Cat. 3 Heavy-Duty (optional) |
| Front Hitch | III (optional) |
Electrical System of Challenger, MT645D
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Batteries | 2 |
| Charging system | Alternator |
| Charging amps | 240 |
Where it sits
With 240 HP, the Challenger MT645D sits just below MT655D (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 MT645D have?
The Challenger MT645D delivers 240 HP.
What years was the Challenger MT645D produced?
The Challenger MT645D was produced in 2011-2013.
What engine does the Challenger MT645D have?
The Challenger MT645D is powered by a Turbocharged air-to-air intercooled diesel, 6-cylinder engine.
What transmission does the Challenger MT645D use?
The Challenger MT645D uses a Techstar CVT transmission.
How much does the Challenger MT645D weigh?
The Challenger MT645D weighs 33070 lbs [15000 kg].
Is the Challenger MT645D 4WD?
The Challenger MT645D is available in 4WD.