Challenger MT635 VS Farmall 666 specs comparison

Challenger MT635
General InfosMake | Challenger |
Model | MT635 |
Country | United states |
Production | From 2002 Until 2003 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | Challenger MT635 Manual |
Dimensions, sizes and tires
AG front tires | 14.9R30 |
AG rear tires | 18.4R42 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 18900 lbs or 8573 kg |
Length | 203 inches [515 cm] |
Width | 98.2 inches [249 cm] |
Height | 121 inches [307 cm] |
Wheelbase | 121 inches [307 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 449 ci or 7.4 L |
Cylinders | 6 cylinders |
Engine power | - |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 120 gal or 454.2 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Challenger MT635 Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | power shift |
Trans gears | 18 forward and 6 reverse |
Clutch system | electro-hydraulic wet disc |
Wheel drive | 4x4 MFWD 4WD |
Final drive | - |
Steering | power |
Braking system | hydraulic wet disc |
Cabin type | Cab standard with air-conditioning |
Differentiel lock | - |
System | closed center pressure flow compensated |
Valves | 4 |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2900 psi or 200.0 bar |
Max flow | 29 gpm or 109.8 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 160 hp or 119.3 kW |
Real power | 171.41 hp or 127.8 kW |
Engine @RPM | 540@1991 (rpm) |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 10.2 gal/hour or 38.6 l/hour |
Hitch system | - |
Rear hitch | III |
Rear hitch lift | 16100 lbs or 7302 kg |
Front hitch | - |
Front hitch lift | - |

Farmall 666
General InfosMake | Farmall |
Model | 666 |
Country | United states |
Production | From 1972 Until 1976 |
Price | 11,875 USD |
Tractor type | - |
Fuel | diesel |
Service repair manual | Farmall 666 Manual |
Dimensions, sizes and tires
AG front tires | 7.50-16 |
AG rear tires | 15.5-38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 7053 lbs or 3199 kg |
Length | - |
Width | - |
Height | - |
Wheelbase | 103 inches [261 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 291 ci or 4.8 L |
Cylinders | 6 cylinders |
Engine power | - |
Engine RPM | 2000 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | - |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Farmall 666 Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | - |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | Torque-Amplifier |
Trans type | partial power shift |
Trans gears | 10 forward and 2 reverse |
Clutch system | dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | dry 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 | - |
Drawbar horsepower | 53.10 hp or 39.6 kW |
Fuel consumption | 5.6 gal/hour or 21.2 l/hour |
Pulling power | 8,310 lbs or 3769 kg |
Claimed power | - |
Real power | 65.41 hp or 48.8 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 | 5.3 gal/hour or 20.1 l/hour |
Hitch system | - |
Rear hitch | II |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- Challenger provided us with the latest version of its MT635 service repair manual
- Find All mechanical and electrical parts and accessories of Challenger MT635 farm-tractor here
- Get your Farmall 666 manual book version
- Cabine, electrical And mechanical parts for Farmall 666 farm-tractor here