Massey Ferguson 4900 VS Allis Chalmers HD21 specs comparison

Massey Ferguson 4900
General InfosMake | Massey Ferguson |
Model | 4900 |
Country | United states |
Production | From 1980 Until 1983 |
Price | 123,400 USD |
Tractor type | Four wheel Drive (4WD) tractor |
Fuel | diesel |
Service repair manual | Massey Ferguson 4900 Manual |
Dimensions, sizes and tires
AG front tires | 18.4-38 |
AG rear tires | 18.4-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 27,000 lbs or 12247 kg |
Length | 252 inches [640 cm] |
Width | 108 inches [274 cm] |
Height | 130 inches [330 cm] |
Wheelbase | 137 inches [347 cm] |
Ground clearance | - |
Turning radius | 17 feet [5.2 m] |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 903 ci or 14.8 L |
Cylinders | 8 cylinders |
Engine power | 375 hp or 279.6 kW |
Engine RPM | 2600 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 190 gal or 719.1 L |
Oil capacity | 37.5 qts or 35.5 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Massey Ferguson 4900 Parts |
Batteries number | 4 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 60 amps |
Trans system | - |
Trans type | partial power shift |
Trans gears | 18 forward and 6 reverse |
Clutch system | wet disc with four 14-inch plates |
Wheel drive | 4x4 articulated 4WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | hydraulic caliper |
Cabin type | Cab standard with heat and air-conditioning |
Differentiel lock | - |
System | open center |
Valves | 3 to 4 |
Pump flow | 16 gpm or 60.6 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | 60 gpm or 227.1 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 266.16 hp or 198.5 kW |
Fuel consumption | 20.1 gal/hour or 76.1 l/hour |
Pulling power | 30,090 lbs or 13648 kg |
Claimed power | 321 hp or 239.4 kW |
Real power | 323.88 hp or 241.5 kW |
Engine @RPM | 1000@2350 (rpm) |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 19.3 gal/hour or 73.1 l/hour |
Hitch system | position control with electronic lower link sensing |
Rear hitch | IV |
Rear hitch lift | 13,000 lbs or 5896 kg |
Front hitch | - |
Front hitch lift | - |

Allis Chalmers HD21
General InfosMake | Allis Chalmers |
Model | HD21 |
Country | United states |
Production | From 1954 Until 1965 |
Price | - |
Tractor type | Agricultural Crawler tractor |
Fuel | diesel |
Service repair manual | Allis Chalmers HD21 Manual |
Dimensions, sizes and tires
AG front tires | tracks |
AG rear tires | tracks |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 45500 lbs or 20638 kg |
Length | 198 inches [502 cm] |
Width | - |
Height | 99 inches [251 cm] |
Wheelbase | - |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 844 ci or 13.8 L |
Cylinders | 6 cylinders |
Engine power | 225 hp or 167.8 kW |
Engine RPM | 1800 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 135 gal or 511.0 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 24 V |
Parts And Accessories | Allis Chalmers HD21 Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | torque converter |
Trans gears | 2 forward and 1 reverse |
Clutch system | - |
Wheel drive | crawler |
Final drive | - |
Steering | - |
Braking system | contracting band |
Cabin type | Open operator station |
Differentiel lock | - |
System | - |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 135.12 hp or 100.8 kW |
Fuel consumption | - |
Pulling power | 40563 lbs or 18399 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 | - |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- Massey Ferguson provided us with the latest version of its 4900 service repair manual
- Find All mechanical and electrical parts and accessories of Massey Ferguson 4900 farm-tractor here
- Get your Allis Chalmers HD21 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers HD21 farm-tractor here