M-R-S A-80B VS Challenger MT445B specs comparison
M-R-S A-80B
General Infos| Make | M-R-S |
| Model | A-80B |
| Country | United states |
| Production | From 1967 Until 1980 |
| Price | - |
| Tractor type | Four wheel Drive (4WD) tractor |
| Fuel | diesel |
| Service repair manual | M-R-S A-80B Manual |
Dimensions, sizes and tires
| AG front tires | 18.00-26 |
| AG rear tires | 18.00-26 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 17000 lbs or 7711 kg |
| Length | 195 inches [495 cm] |
| Width | 111 inches [281 cm] |
| Height | 117 inches [297 cm] |
| Wheelbase | 118 inches [299 cm] |
| Ground clearance | 14 inches [35 cm] |
| Turning radius | - |
| Rear tread size | 80 inches |
| Front tread size | 80 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 283.7 ci or 4.6 L |
| Cylinders | 4 cylinders |
| Engine power | 141 hp or 105.1 kW |
| Engine RPM | 2100 (rpm) |
| Torque | 366 lb-ft or 496.3 Nm | Torque RPM | 1600 (rpm) |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | - |
| Oil capacity | 15 qts or 14.2 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | M-R-S A-80B Parts |
| Batteries number | - |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | - |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | - |
| Trans type | - |
| Trans gears | 20 forward and 4 reverse |
| Clutch system | 381mm dry disc |
| Wheel drive | 4x4 4WD |
| Final drive | - |
| Steering | power four-wheel |
| Braking system | - |
| Cabin type | Open operator station |
| Differentiel lock | - |
| System | - |
| Valves | - |
| Pump flow | 20 gpm or 75.7 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 123 hp or 91.7 kW |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| 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 | - |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Challenger MT445B
General Infos| Make | Challenger |
| Model | MT445B |
| Country | United states |
| Production | From 2004 Until 2013 |
| Price | - |
| Tractor type | Utility tractor |
| Fuel | diesel |
| Service repair manual | Challenger MT445B Manual |
Dimensions, sizes and tires
| AG front tires | 10.00-16 (2WD) |
| AG rear tires | 480/70R38 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 8,840 lbs or 4009 kg |
| Length | - |
| Width | - |
| Height | - |
| Wheelbase | 97 inches [246 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 268 ci or 4.4 L |
| Cylinders | 4 cylinders |
| Engine power | 85 hp or 63.4 kW |
| Engine RPM | 2200 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 40 gal or 151.4 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | Challenger MT445B Parts |
| Batteries number | - |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | Autopower IV |
| Trans type | four speed power shift |
| Trans gears | 16 forward and reverse |
| Clutch system | wet disc |
| Wheel drive | 4x2 2WD |
| Final drive | inboard planetary |
| Steering | hydrostatic power |
| Braking system | hydraulic wet disc |
| Cabin type | ROPS |
| Differentiel lock | electro-hydraulic |
| System | - |
| Valves | 2 to 4 |
| Pump flow | 26.4 gpm or 99.9 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | 2900 psi or 200.0 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | 60.5 hp or 45.1 kW |
| Fuel consumption | 4.9 gal/hour or 18.5 l/hour |
| Pulling power | 8680 lbs or 3937 kg |
| Claimed power | 70 hp or 52.2 kW |
| Real power | 73.4 hp or 54.7 kW |
| Engine @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 | 4.8 gal/hour or 18.2 l/hour |
| Hitch system | electronic top-link draft control |
| Rear hitch | II |
| Rear hitch lift | 7285 lbs or 3304 kg |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
M-R-S A-80B New Holland TC31DA
Challenger MT445B New Holland 7630 S100
M-R-S A-80B Steyr 6155 CVT
M-R-S A-80B AGCO RT120
Challenger MT445B Landini Powerfarm 75
M-R-S A-80B Buhler Versatile 535
Choose another tractor
Useful links and guides ....
- M-R-S provided us with the latest version of its A-80B service repair manual
- Find All mechanical and electrical parts and accessories of M-R-S A-80B farm-tractor here
- Get your Challenger MT445B manual book version
- Cabine, electrical And mechanical parts for Challenger MT445B farm-tractor here
