Challenger MT845: all source data
All 64 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Challenger (a part of AGCO) |
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| (no label) | Agricultural Crawler tractor |
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| (no label) | Built in USA |
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Engine| (no label) | Caterpillar 11.9L 6-cyl diesel |
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Transmission| (no label) | 16-speed full power shift |
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Power| Engine (gross) | 380 hp | 283.4 kW |
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| PTO (claimed) | 313 hp | 233.4 kW |
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| Drawbar (tested) | 297.93 hp | 222.2 kW |
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| PTO (tested) | 393.14 hp | 293.2 kW |
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Mechanical| Drive | crawler |
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| (no label) | Power steering |
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| (no label) | Hydraulic wet disc brakes |
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| (no label) | Cab standard with air-conditioning. |
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Capacity| Fuel | 305 gal | 1154.4 L |
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| Fuel | 330 gal | 1249.0 L |
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| Hydraulic system | 70 gal | 264.9 L |
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Hydraulics| Type | closed center load sensing |
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| Capacity | 70 gal | 264.9 L |
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| Pressure | 2900 psi | 200.0 bar |
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| Rear valves | 4 to 6 |
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| Pump flow | 43.5 gpm | 164.6 lpm |
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| Pump flow | 59 gpm | 223.3 lpm |
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| SCV flow | 30 gpm | 113.6 lpm |
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Hitch| Rear Type | IVN |
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| Rear lift | 19500 lbs | 8845 kg |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 1000 (1.75) |
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Dimensions| Wheelbase | 118.1 inches | 299 cm |
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| Weight | 40000 lbs | 18144 kg |
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| (no label) | 18-inch tracks |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 160 |
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| Batteries | 3 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Caterpillar C12 |
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| (no label) | turbocharged diesel |
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| (no label) | 6-cylinder |
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| (no label) | liquid-cooled inline |
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| Displacement | 729 ci | 11.9 L |
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| Bore/Stroke | 5.118x5.906 inches | 130 x 150 mm |
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| Power (gross) | 380 hp | 283.4 kW |
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| Air cleaner | dual paper elements |
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| Compression | 16.0:1 |
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| Rated RPM | 2100 |
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| Starter volts | 12 |
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Transmission
Transmission| Transmission | Caterpillar |
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| Type | full power shift |
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| Gears | 16 forward and 4 reverse |
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| Clutch | hydraulic wet disc |
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Dimensions
Tracks| Width | 18 inches | 45 cm |
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| Width | 27.5 inches | 69 cm |
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| Width | 30 inches | 76 cm |
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| Width | 36 inches | 91 cm |
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Dimensions| Wheelbase | 118.1 inches | 299 cm |
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| Length | 265.9 inches | 675 cm |
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| Width | 142.1 inches | 360 cm |
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| Height (cab) | 138.1 inches | 350 cm |
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| Height (exhaust) | 138.7 inches | 352 cm |
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| Ground clearance | 18.7 inches | 47 cm |
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| Gauge | 90 to 128 inches | 228 to 325 cm |
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Weight| Shipping | 40000 lbs | 18144 kg |
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| Ballasted | 50000 lbs | 22680 kg |
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| Max capacity (Max) | 60000 lbs | 27216 kg |
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