Challenger
Challenger MT645E
The Challenger MT645E is a row-crop tractor produced from 2014 to 2020 as part of the MT600E Series. Manufactured by Challenger, a part of AGCO, and built in Jackson, Minnesota, USA, it features a powerful AGCO POWER 8.4L 6-cylinder turbocharged diesel engine with 240 hp rated power and a maximum of 270 hp. The tractor is equipped with a Techstar continuously variable transmission (CVT) offering infinite forward and reverse speeds. It includes four-wheel drive, electro-hydraulic differential lock, hydrostatic power steering, and hydraulic wet disc brakes. The cab is standard with air-conditioning and optional hydraulic suspension. Hydraulics are closed center load sensing with 2900 psi pressure and 54 gpm pump flow. The tractor hitch supports category III/IVN with a rear lift capacity of 26455 lbs. The rear PTO is independent with 1000/1000E type. Dimensions include a 122-inch wheelbase, 218.6-inch length, and 141-inch cab height, with a shipping weight of 23810 lbs. Electrical system features a 12-volt negative ground with a 240 amp charging system. Similar models include the Massey Ferguson 8727 and related models MT645D and MT655E.
Power240 hp
Founded2014 - 2020
ModelMT645E
Technical Specifications
Detailed specifications and technical data for Challenger MT645E
Power
| Engine | 240 hp (179.0 kW) |
|---|---|
| PTO (tested) | 242.6 hp (180.9 kW) |
| PTO (claimed) | 205 hp (152.9 kW) |
| Drawbar (tested) | 209.1 hp (155.9 kW) |
Engine
| Type | turbocharged with air-to-air intercooler diesel |
|---|---|
| Power | 240 hp (179.0 kW) |
| Cooling | liquid-cooled |
| Starter | electric |
| Cylinders | 6-cylinder 24-valve |
| Emissions | Tier IV |
| Fuel tank | 166 gal (628.3 L) |
| Rated RPM | 2100 |
| Bore/Stroke | 4.37x5.71 inches (111 x 145 mm) |
| Displacement | 512.6 ci (8.4 L) |
| Manufacturer | AGCO POWER |
| Maximum Power | 270 hp (201.3 kW) |
| Starter volts | 12 |
| Emission control | selective catalytic reduction (SCR) |
| Exhaust fluid (DEF) | 15.8 gal (59.8 L) |
Variants
| Similar model | 8727 Massey Ferguson model |
|---|
Dimensions
| Length | 218.6 inches (555 cm) |
|---|---|
| Wheelbase | 122 inches (309 cm) |
| Height (cab) | 141 inches (358 cm) |
| Bar rear axle | 4.33 by 105 inches (109 by 2667 mm), 4.33 by 118 inches (109 by 2997 mm) |
| Shipping weight | 23810 lbs (10800 kg) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging amps | 240 (twin 120A) |
| Charging volts | 12 |
| Charging system | alternator |
Hydraulics
| Type | closed center load sensing (CCLS) |
|---|---|
| Valves | 4 to 6 |
| Pressure | 2900 psi (200.0 bar) |
| Pump flow | 54 gpm (204.4 lpm) |
Mechanical
| Cab | standard with air-conditioning. Optional OptiRide Plus hydraulic cab suspension. AgCommand ready; AUTO-GUIDE 3000 |
|---|---|
| Drive | Four-wheel drive |
| Brakes | Hydraulic wet disc brakes |
| Steering | hydrostatic power |
| Differential lock | electro-hydraulic |
Production
| Type | Row-Crop tractor |
|---|---|
| Series | MT600E Series |
| Built in | Jackson, Minnesota, USA |
| Years produced | 2014 - 2020 |
Transmission
| Name | Techstar CVT |
|---|---|
| Type | continuously variable transmission (CVT) |
| Gears | infinite forward and reverse (2-range) |
Tractor hitch
| Drawbar | Cat. 3 |
|---|---|
| Rear Type | III/IVN |
| Optional drawbars | Cat 3 Heavy Duty, Cat 4 |
| Rear lift (at ends) | 26455 lbs (11999 kg) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 1000/1000E (1.75) |