Challenger MT645 VS Steiger Cougar III ST-251 specs comparison
Challenger MT645
General Infos| Make | Challenger |
| Model | MT645 |
| Country | United states |
| Production | From 2002 Until 2003 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | Challenger MT645 Manual |
Dimensions, sizes and tires
| AG front tires | 14.9R30 |
| AG rear tires | 18.4R42 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 19000 lbs or 8618 kg |
| Length | 203 inches [515 cm] |
| Width | 98.2 inches [249 cm] |
| Height | 121 inches [307 cm] |
| Wheelbase | 121 inches [307 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 449 ci or 7.4 L |
| Cylinders | 6 cylinders |
| Engine power | - |
| Engine RPM | 2200 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 120 gal or 454.2 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | Challenger MT645 Parts |
| Batteries number | - |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | - |
| Trans type | power shift |
| Trans gears | 18 forward and 6 reverse |
| Clutch system | electro-hydraulic wet disc |
| Wheel drive | 4x4 MFWD 4WD |
| Final drive | - |
| Steering | power |
| Braking system | hydraulic wet disc |
| Cabin type | Cab standard with air-conditioning |
| Differentiel lock | - |
| System | closed center pressure flow compensated |
| Valves | 4 |
| Pump flow | - |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | 2900 psi or 200.0 bar |
| Max flow | 29 gpm or 109.8 lpm |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | 180 hp or 134.2 kW |
| Real power | 183.87 hp or 137.1 kW |
| Engine @RPM | 1000@2091 (rpm) |
| PTO Clutch | - |
| Rear PTO | independent |
| Rear PTO RPM | 1000 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 10.9 gal/hour or 41.3 l/hour |
| Hitch system | - |
| Rear hitch | III |
| Rear hitch lift | 18400 lbs or 8346 kg |
| Front hitch | - |
| Front hitch lift | - |
Steiger Cougar III ST-251
General Infos| Make | Steiger |
| Model | Cougar III ST-251 |
| Country | United states |
| Production | From 1976 Until 1982 |
| Price | 75,000 USD |
| Tractor type | Four wheel Drive (4WD) tractor |
| Fuel | diesel |
| Service repair manual | Steiger Cougar III ST-251 Manual |
Dimensions, sizes and tires
| AG front tires | 23.1-34 |
| AG rear tires | 23.1-34 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 26,610 lbs or 12070 kg |
| Length | 252 inches [640 cm] |
| Width | 96 inches [243 cm] (tractor body) |
| Height | - |
| Wheelbase | 128 inches [325 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 855 ci or 14.0 L |
| Cylinders | 6 cylinders |
| Engine power | 250 hp or 186.4 kW |
| Engine RPM | 2100 (rpm) |
| Torque | 850 lb-ft or 1152.6 Nm | Torque RPM | 1400 (rpm) |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 267 gal or 1010.6 L |
| Oil capacity | 44 qts or 41.6 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | Steiger Cougar III ST-251 Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | 208 amps |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 90 amps |
| Trans system | Spicer SST 1010 |
| Trans type | - |
| Trans gears | 20 forward and 4 reverse |
| Clutch system | 394mm dry disc |
| Wheel drive | 4x4 articulated 4WD |
| Final drive | outboard planetary |
| Steering | hydrostatic power |
| Braking system | hydraulic disc |
| Cabin type | Safari Cab standard with heat and air-conditioning |
| Differentiel lock | - |
| System | open center |
| Valves | 4 |
| Pump flow | 30.8 gpm or 116.6 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 33 gal or 124.9 L |
| Hydraulic pressure | 2250 psi or 155.1 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 206 hp or 153.6 kW |
| Drawbar horsepower | 199.04 hp or 148.4 kW |
| Fuel consumption | 13.5 gal/hour or 51.1 l/hour |
| Pulling power | 26,880 lbs or 12192 kg |
| Claimed power | - |
| Real power | - |
| Engine @RPM | - |
| PTO Clutch | - |
| Rear PTO | - |
| Rear PTO RPM | - |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | 3 |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
Steiger Cougar III ST-251 Kubota B5000
Steiger Cougar III ST-251 Massey Ferguson 1134
Steiger Cougar III ST-251 John Deere 930
Challenger MT645 International Harvester 674
Steiger Cougar III ST-251 Versatile 800
Steiger Cougar III ST-251 Yanmar YM195
Choose another tractor
Useful links and guides ....
- Challenger provided us with the latest version of its MT645 service repair manual
- Find All mechanical and electrical parts and accessories of Challenger MT645 farm-tractor here
- Get your Steiger Cougar III ST-251 manual book version
- Cabine, electrical And mechanical parts for Steiger Cougar III ST-251 farm-tractor here
