Allis Chalmers HD21 VS Oliver 1655 specs comparison

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 | - |

Oliver 1655
General InfosMake | Oliver |
Model | 1655 |
Country | United states |
Production | From 1969 Until 1975 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | Oliver 1655 Manual |
Dimensions, sizes and tires
AG front tires | 6.00-16 |
AG rear tires | 12.4-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 7500 lbs or 3402 kg |
Length | 145.5 inches [369 cm] |
Width | 81.5 inches [207 cm] |
Height | - |
Wheelbase | 82.125 inches [208 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 56.5 to 89.5 inches |
Front tread size | 61.5 to 87.5 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 265 ci or 4.3 L |
Cylinders | 6 cylinders |
Engine power | - |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 27.5 gal or 104.1 L |
Oil capacity | 8 qts or 7.6 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Oliver 1655 Parts |
Batteries number | 2 |
Batteries voltage | 6 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | Hydraul-Shift |
Trans type | helical gear |
Trans gears | 6 forward and 2 reverse |
Clutch system | 304.8mm dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | power |
Braking system | disc |
Cabin type | Open operator station |
Differentiel lock | - |
System | open center |
Valves | 2 to 4 |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | 14 gal or 53.0 L |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 57.44 hp or 42.8 kW |
Fuel consumption | 6.5 gal/hour or 24.6 l/hour |
Pulling power | 8,519 lbs or 3864 kg |
Claimed power | 70 hp or 52.2 kW |
Real power | 70.27 hp or 52.4 kW |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 6.6 gal/hour or 25.0 l/hour |
Hitch system | lower-link draft control |
Rear hitch | II/I |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
Related tractor comparison


Oliver 1655 J.I. Case 770


Allis Chalmers HD21 J.I. Case 870


Oliver 1655 J.I. Case 1370


Allis Chalmers HD21 J.I. Case 570


Allis Chalmers HD21 Fiat 900


Allis Chalmers HD21 Volvo T600
Choose another tractor
Useful links and guides ....
- Allis Chalmers provided us with the latest version of its HD21 service repair manual
- Find All mechanical and electrical parts and accessories of Allis Chalmers HD21 farm-tractor here
- Get your Oliver 1655 manual book version
- Cabine, electrical And mechanical parts for Oliver 1655 farm-tractor here