Steiger Cougar III ST-251 VS John Deere 6630 specs comparison

Steiger Cougar III ST-251
General InfosMake | Steiger |
Model | Cougar III ST-251 |
Country | United states |
Production | From 1976 Until 1982 |
Price | 75,000 USD |
Tractor type | Four wheel Drive (4WD) tractor |
Fuel | diesel |
Service repair manual | Steiger Cougar III ST-251 Manual |
Dimensions, sizes and tires
AG front tires | 23.1-34 |
AG rear tires | 23.1-34 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 26,610 lbs or 12070 kg |
Length | 252 inches [640 cm] |
Width | 96 inches [243 cm] (tractor body) |
Height | - |
Wheelbase | 128 inches [325 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 855 ci or 14.0 L |
Cylinders | 6 cylinders |
Engine power | 250 hp or 186.4 kW |
Engine RPM | 2100 (rpm) |
Torque | 850 lb-ft or 1152.6 Nm |
Torque RPM | 1400 (rpm) |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 267 gal or 1010.6 L |
Oil capacity | 44 qts or 41.6 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Steiger Cougar III ST-251 Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | 208 amps |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 90 amps |
Trans system | Spicer SST 1010 |
Trans type | - |
Trans gears | 20 forward and 4 reverse |
Clutch system | 394mm dry disc |
Wheel drive | 4x4 articulated 4WD |
Final drive | outboard planetary |
Steering | hydrostatic power |
Braking system | hydraulic disc |
Cabin type | Safari Cab standard with heat and air-conditioning |
Differentiel lock | - |
System | open center |
Valves | 4 |
Pump flow | 30.8 gpm or 116.6 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | 33 gal or 124.9 L |
Hydraulic pressure | 2250 psi or 155.1 bar |
Max flow | - |
Drawbar type | - |
Claimed power | 206 hp or 153.6 kW |
Drawbar horsepower | 199.04 hp or 148.4 kW |
Fuel consumption | 13.5 gal/hour or 51.1 l/hour |
Pulling power | 26,880 lbs or 12192 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 | 3 |
Rear hitch lift | - |
Front hitch | - |
Front hitch lift | - |

John Deere 6630
General InfosMake | 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 | - |
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Useful links and guides ....
- Steiger provided us with the latest version of its Cougar III ST-251 service repair manual
- Find All mechanical and electrical parts and accessories of Steiger Cougar III ST-251 farm-tractor here
- Get your John Deere 6630 manual book version
- Cabine, electrical And mechanical parts for John Deere 6630 farm-tractor here