Allis Chalmers HD21 VS Allis Chalmers 8550 specs comparison
Allis Chalmers HD21
General Infos| Make | 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 | - |
Allis Chalmers 8550
General Infos| Make | Allis Chalmers |
| Model | 8550 |
| Country | United states |
| Production | From 1978 Until 1981 |
| Price | 86,753 USD |
| Tractor type | Four wheel Drive (4WD) tractor |
| Fuel | diesel |
| Service repair manual | Allis Chalmers 8550 Manual |
Dimensions, sizes and tires
| AG front tires | 20.8x34 |
| AG rear tires | 20.8x34 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 26,400 lbs or 11975 kg |
| Length | 285 inches [723 cm] |
| Width | 95.5 inches [242 cm] |
| Height | 139 inches [353 cm] |
| Wheelbase | 126 inches [320 cm] |
| Ground clearance | 17 inches [43 cm] |
| Turning radius | - |
| Rear tread size | 62 to 123 inches |
| Front tread size | 62 to 123 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 731 ci or 12.0 L |
| Cylinders | 6 cylinders 24 valves |
| Engine power | 300 hp or 223.7 kW |
| Engine RPM | 2500 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 170 gal or 643.5 L |
| Oil capacity | 46 qts or 43.5 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | Allis Chalmers 8550 Parts |
| Batteries number | 4 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | Power Director |
| Trans type | partial power shift |
| Trans gears | 20 forward and 4 reverse |
| Clutch system | - |
| Wheel drive | 4x4 articulated 4WD |
| Final drive | - |
| Steering | hydrostatic power |
| Braking system | hydraulic wet discs |
| Cabin type | Acousta Cab II standard with heat and air-conditioning |
| Differentiel lock | - |
| System | closed center |
| Valves | 3 or 4 |
| Pump flow | 74.9 gpm or 283.5 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 210 hp or 156.6 kW |
| Drawbar horsepower | 217.92 hp or 162.5 kW |
| Fuel consumption | 17.5 gal/hour or 66.2 l/hour |
| Pulling power | 26,220 lbs or 11893 kg |
| Claimed power | 250 hp or 186.4 kW |
| Real power | 253.88 hp or 189.3 kW |
| Engine @RPM | - |
| PTO Clutch | - |
| Rear PTO | independent |
| Rear PTO RPM | 1000 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 17.4 gal/hour or 65.9 l/hour |
| Hitch system | - |
| Rear hitch | IV/III |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
Allis Chalmers HD21 Steiger Cougar III ST-250
Allis Chalmers 8550 John Deere 4440
Allis Chalmers HD21 International Harvester 955
Allis Chalmers 8550 Kubota B7100HST
Allis Chalmers HD21 International Harvester 4186
Allis Chalmers 8550 IMT 539
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 Allis Chalmers 8550 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers 8550 farm-tractor here
