John Deere 6630 VS Allis Chalmers HD21 specs comparison
John Deere 6630
General Infos| Make | John Deere |
| Model | 6630 |
| Country | United states |
| Production | From 2006 Until 2011 |
| Price | - |
| Tractor type | - |
| Fuel | diesel |
| Service repair manual | John Deere 6630 Manual |
Dimensions, sizes and tires
| AG front tires | 420/70R28 |
| AG rear tires | 18.4R38 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 11,390 lbs or 5166 kg |
| Length | 186.1 inches [472 cm] |
| Width | 91.2 inches [231 cm] |
| Height | 111.5 inches [283 cm] |
| Wheelbase | 104.3 inches [264 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 63.9 to 79.6 inches |
| Front tread size | 58.5 to 80.4 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 413.7 ci or 6.8 L |
| Cylinders | 6 cylinders 12 valves |
| Engine power | 137 hp or 102.2 kW |
| Engine RPM | 2300 (rpm) |
| Torque | 389 lb-ft or 527.5 Nm | Torque RPM | 1600 (rpm) |
| Fuel type | diesel |
| Fuel injection | high-pressure common rail injection |
| Fuel tank size | 54.7 gal or 207.0 L |
| Oil capacity | 20.6 qts or 19.5 L |
| Oil change | 500 h |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 6630 Parts |
| Batteries number | - |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 154 amps |
| Trans system | John Deere PowrQuad Plus |
| Trans type | partial power shift |
| Trans gears | 24 forward and reverse |
| Clutch system | dual 225mm wet disc PermaClutch |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | - |
| Braking system | hydraulic wet disc |
| Cabin type | Two-post foldable Roll-Guard ROPS |
| Differentiel lock | rear electro-hydraulic wet disc |
| System | constant flow load sensing |
| Valves | - |
| Pump flow | 21.4 gpm or 81.0 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 13.2 gal or 50.0 L |
| Hydraulic pressure | 2,901 psi or 200.0 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | 113 hp or 84.3 kW |
| Real power | - |
| Engine @RPM | 1000@2185 (rpm) |
| PTO Clutch | electro-hydraulic wet disc |
| Rear PTO | independent |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | - |
| Front PTO RPM | 1000 (rpm) |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | load and depth control with electronic lower-link sensing |
| Rear hitch | II |
| Rear hitch lift | 11,470 lbs or 5202 kg |
| Front hitch | - |
| Front hitch lift | - |
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 | - |
Related tractor comparison
John Deere 6630 John Deere 40
Allis Chalmers HD21 Farmall Super M
Allis Chalmers HD21 John Deere 620
Allis Chalmers HD21 International Harvester Cub Lo-Boy
John Deere 6630 Farmall 400
John Deere 6630 Oliver Super 88
Choose another tractor
Useful links and guides ....
- John Deere provided us with the latest version of its 6630 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 6630 farm-tractor here
- Get your Allis Chalmers HD21 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers HD21 farm-tractor here
