Challenger 75D VS Allis Chalmers D21 Series I specs comparison
Challenger 75D
General Infos| Make | Challenger |
| Model | 75D |
| Country | United states |
| Production | From 1995 Until 1997 |
| Price | - |
| Tractor type | Agricultural Crawler tractor |
| Fuel | diesel |
| Service repair manual | Challenger 75D Manual |
Dimensions, sizes and tires
| AG front tires | 30-inch track |
| AG rear tires | 30-inch track |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 35720 lbs or 16202 kg |
| Length | 232 inches [589 cm] |
| Width | 120 inches [304 cm] |
| Height | 128 inches [325 cm] |
| Wheelbase | 107 inches [271 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 90 inches |
| Front tread size | 90 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 629 ci or 10.3 L |
| Cylinders | 6 cylinders |
| Engine power | 330 hp or 246.1 kW |
| Engine RPM | 2100 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 203 gal or 768.4 L |
| Oil capacity | 32 qts or 30.3 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | Challenger 75D Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | 900 |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 145 amps |
| Trans system | - |
| Trans type | full power shift |
| Trans gears | 10 forward and 2 reverse |
| Clutch system | - |
| Wheel drive | crawler |
| Final drive | - |
| Steering | hydrostatic differential steering |
| Braking system | hydraulic wet disc |
| Cabin type | Cab standard with air-conditioning |
| Differentiel lock | - |
| System | closed-center pressure-compensated |
| Valves | 4 |
| Pump flow | 27 gpm or 102.2 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 29 gal or 109.8 L |
| Hydraulic pressure | 2750 psi or 189.6 bar |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 240 hp or 179.0 kW |
| Drawbar horsepower | 254.52 hp or 189.8 kW |
| Fuel consumption | 15.8 gal/hour or 59.8 l/hour |
| Pulling power | 34,760 lbs or 15767 kg |
| Claimed power | 285 hp or 212.5 kW |
| Real power | 292.57 hp or 218.2 kW |
| Engine @RPM | 1000@2050 (rpm) |
| PTO Clutch | - |
| Rear PTO | independent |
| Rear PTO RPM | 1000 (rpm) |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | 16.0 gal/hour or 60.6 l/hour |
| Hitch system | position and draft control |
| Rear hitch | IV/III |
| Rear hitch lift | 12300 lbs or 5579 kg |
| Front hitch | - |
| Front hitch lift | - |
Allis Chalmers D21 Series I
General Infos| Make | Allis Chalmers |
| Model | D21 Series I |
| Country | United states |
| Production | From 1963 Until 1969 |
| Price | - |
| Tractor type | Row Crop tractor |
| Fuel | diesel |
| Service repair manual | Allis Chalmers D21 Series I Manual |
Dimensions, sizes and tires
| AG front tires | 11.00x16 |
| AG rear tires | 24.5x32 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 9500 lbs or 4309 kg |
| Length | 160.6 inches [407 cm] |
| Width | 91.6 inches [232 cm] |
| Height | - |
| Wheelbase | 96.1 inches [244 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 426 ci or 7.0 L |
| Cylinders | 6 cylinders |
| Engine power | - |
| Engine RPM | 2200 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | - |
| Fuel tank size | 52 gal or 196.8 L |
| Oil capacity | 12 qts or 11.4 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | Allis Chalmers D21 Series I Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | 95 amps |
| Cold Amps | - |
| Ground force | negative |
| Charging system | Delco-Remy generator |
| Charging Volts | - |
| Charging Amps | 32 amps |
| Trans system | Power Director |
| Trans type | sliding gear |
| Trans gears | 8 forward and 2 reverse |
| Clutch system | dry disc |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | power |
| Braking system | band actuated disc |
| 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 | 93 hp or 69.4 kW |
| Drawbar horsepower | 93.09 hp or 69.4 kW |
| Fuel consumption | 7.1 gal/hour or 26.9 l/hour |
| Pulling power | 14,840 lbs or 6731 kg |
| Claimed power | 103 hp or 76.8 kW |
| Real power | 103.06 hp or 76.9 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 | 7.1 gal/hour or 26.9 l/hour |
| Hitch system | - |
| Rear hitch | III/II |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
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Useful links and guides ....
- Challenger provided us with the latest version of its 75D service repair manual
- Find All mechanical and electrical parts and accessories of Challenger 75D farm-tractor here
- Get your Allis Chalmers D21 Series I manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers D21 Series I farm-tractor here
