Challenger
Challenger MT445
The Challenger MT445 is a utility tractor produced from 2002 to 2004 as part of the MT400 Series. Built in England by Challenger (a part of AGCO), it features a Perkins 4.2L 4-cylinder diesel engine and offers multiple transmission options including a 24-speed power shuttle. The tractor is equipped with hydraulic wet disc brakes, power steering, and a two-post folding ROPS with an optional air-conditioned cab. It has a PTO power of 65 hp (claimed) and tested drawbar power of 60.2 hp. The MT445 is similar to the Massey Ferguson 4233 and 4335 models.
Power72 hp[P]
Founded2002 - 2004
ModelMT445
Technical Specifications
Detailed specifications and technical data for Challenger MT445
Power
| PTO (tested) | 69.7 hp (52.0 kW) |
|---|---|
| PTO (claimed) | 65 hp (48.5 kW) |
| Drawbar (tested) | 60.2 hp (44.9 kW) |
Tires
| Ag rear | 13.6R38 |
|---|---|
| Ag front | 12.4R24 |
Engine
| Type | diesel |
|---|---|
| Model | Perkins 3054B |
| Cooling | liquid-cooled |
| Cylinders | 4-cylinder |
| Rated RPM | 2200 |
| Air cleaner | dual paper elements |
| Bore/Stroke | 4.055x5.00 inches (103 x 127 mm) |
| Pre-heating | thermostart |
| Displacement | 258 ci (4.2 L) |
| Starter volts | 12 |
| Fuel tank (Cab) | 34 gal (128.7 L) |
| Fuel tank (ROPS) | 29.1 gal (110.1 L) |
| Compression ratio | 17.3:1 |
| Fuel tank (Optional with cab) | 50 gal (189.2 L) |
Weight
| 2WD Cab | 7619 lbs (3455 kg) |
|---|---|
| 4WD Cab | 8170 lbs (3705 kg) |
| 2WD ROPS | 6211 lbs (2817 kg) |
| 4WD ROPS | 6546 lbs (2969 kg) |
Dimensions
| Width | 77 inches (195 cm) |
|---|---|
| Length | 163 inches (414 cm) |
| Wheelbase | 93 inches (236 cm) |
| Height (cab) | 100 inches (254 cm) |
| Height (ROPS) | 103 inches (261 cm) |
| Height (Folded ROPS) | 78 inches (198 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Valves | 2 to 4 |
| Pressure | 3046 psi (210.0 bar) |
| SCV flow | 10 gpm (37.9 lpm) |
| Total flow | 25 gpm (94.6 lpm) |
Production
| Type | Utility tractor |
|---|---|
| Notes | The Challenger MT445 is similar to the Massey Ferguson 4233 and 4335. |
| Series | MT400 Series |
| Built in | England |
| Years made | 2002 - 2004 |
Transmission
| Options | 24-speed power shuttle, 12-speed syncromesh, 12-speed mechanical shuttle |
|---|---|
| Syncromesh | Typesyncromesh Gears12 forward and 4 reverse |
| Power shuttle | Typepower shuttle Gears24 forward and reverse Clutchwet disc |
| Mechanical shuttle | Typemechanical shuttle Gears12 forward and reverse |
Tractor hitch
| Control | electronic draft control |
|---|---|
| Rear Type | II |
| Optional rear lift | 6200 lbs (2812 kg) |
| Rear lift (at 24"/610mm) | 4100 lbs (1859 kg) |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540/1000 |