International Harvester 644 VS Challenger MT545B specs comparison
International Harvester 644
General Infos| Make | International Harvester |
| Model | 644 |
| Country | United states |
| Production | From 1974 Until 1980 |
| Price | - |
| Tractor type | - |
| Fuel | diesel |
| Service repair manual | International Harvester 644 Manual |
Dimensions, sizes and tires
| AG front tires | 7.50-16 |
| AG rear tires | 16.9-30 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 6,350 lbs or 2880 kg |
| Length | 148.82 inches [378 cm] |
| Width | - |
| Height | 98.03 inches [248 cm] |
| Wheelbase | 87.80 inches [223 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 206.4 ci or 3.4 L |
| Cylinders | 4 cylinders |
| Engine power | 60 hp or 44.7 kW |
| Engine RPM | 2150 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 19.6 gal or 74.2 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | International Harvester 644 Parts |
| Batteries number | - |
| Batteries voltage | - |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | - |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | - |
| Trans type | - |
| Trans gears | 8 forward and 4 reverse |
| Clutch system | - |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | - |
| Braking system | - |
| Cabin type | - |
| Differentiel lock | - |
| System | - |
| Valves | - |
| Pump flow | 7.9 gpm or 29.9 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | - |
| Real power | - |
| Engine @RPM | - |
| PTO Clutch | - |
| Rear PTO | - |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | - |
| Rear hitch lift | 6394 lbs or 2900 kg |
| Front hitch | - |
| Front hitch lift | - |
Challenger MT545B
General Infos| Make | Challenger |
| Model | MT545B |
| Country | United states |
| Production | From 2004 Until 2011 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | Challenger MT545B Manual |
Dimensions, sizes and tires
| AG front tires | 11.00-16 (2WD) |
| AG rear tires | 580/70R38 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 11,052 lbs or 5013 kg |
| Length | 168.5 inches [427 cm] |
| Width | 81.1 inches [205 cm] |
| Height | 112.8 inches [286 cm] |
| Wheelbase | 112.1 inches [284 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 55.5 to 91 inches |
| Front tread size | 64.1 to 83 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 365.2 ci or 6.0 L |
| Cylinders | 6 cylinders |
| Engine power | 143 hp or 106.6 kW |
| Engine RPM | 2200 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 71 gal or 268.7 L |
| Oil capacity | 15.3 qts or 14.5 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | Challenger MT545B Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | 420 |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 120 amps |
| Trans system | TechStar CVT |
| Trans type | continuously variable transmission |
| Trans gears | infinite (2-range) forward and reverse |
| Clutch system | hydraulic wet disc |
| Wheel drive | 4x2 2WD |
| Final drive | inboard planetary |
| Steering | power |
| Braking system | hydraulic wet disc |
| Cabin type | Cab standard with heat and A/C |
| Differentiel lock | electro-hydraulic front and rear |
| System | closed center pressure flow compensating |
| Valves | 2 to 4 |
| Pump flow | - |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 18.5 gal or 70.0 L |
| Hydraulic pressure | 2900 psi or 200.0 bar |
| Max flow | 29 gpm or 109.8 lpm |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | 100.4 hp or 74.9 kW |
| Fuel consumption | 8.0 gal/hour or 30.3 l/hour |
| Pulling power | 14,690 lbs or 6663 kg |
| Claimed power | 115 hp or 85.8 kW |
| Real power | 124.6 hp or 92.9 kW |
| Engine @RPM | 540@1980 (rpm) |
| PTO Clutch | electro-hydraulic wet disc |
| Rear PTO | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 8.0 gal/hour or 30.3 l/hour |
| Hitch system | - |
| Rear hitch | II/III |
| Rear hitch lift | 9,391 lbs or 4259 kg |
| Front hitch | optional |
| Front hitch lift | 5,500 lbs or 2494 kg |
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Useful links and guides ....
- International Harvester provided us with the latest version of its 644 service repair manual
- Find All mechanical and electrical parts and accessories of International Harvester 644 farm-tractor here
- Get your Challenger MT545B manual book version
- Cabine, electrical And mechanical parts for Challenger MT545B farm-tractor here
