Challenger MT645 VS Long 550 specs comparison

Challenger MT645
General InfosMake | Challenger |
Model | MT645 |
Country | United states |
Production | From 2002 Until 2003 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | Challenger MT645 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 | 19000 lbs or 8618 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 MT645 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 | 180 hp or 134.2 kW |
Real power | 183.87 hp or 137.1 kW |
Engine @RPM | 1000@2091 (rpm) |
PTO Clutch | - |
Rear PTO | independent |
Rear PTO RPM | 1000 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 10.9 gal/hour or 41.3 l/hour |
Hitch system | - |
Rear hitch | III |
Rear hitch lift | 18400 lbs or 8346 kg |
Front hitch | - |
Front hitch lift | - |

Long 550
General InfosMake | Long |
Model | 550 |
Country | United states |
Production | From 1972 Until 1975 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | Long 550 Manual |
Dimensions, sizes and tires
AG front tires | 7.50-16 |
AG rear tires | 18.4-28 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 4570 lbs or 2072 kg |
Length | - |
Width | - |
Height | - |
Wheelbase | 81.5 inches [207 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 47.25 to 74.7 inches |
Front tread size | 52 to 79 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 190.7 ci or 3.1 L |
Cylinders | 4 cylinders |
Engine power | 60 hp or 44.7 kW |
Engine RPM | 2400 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | direct injection |
Fuel tank size | 14.25 gal or 53.9 L |
Oil capacity | 11 qts or 10.4 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Long 550 Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | - |
Trans type | gear |
Trans gears | 8 forward and 2 reverse |
Clutch system | 279.4mm dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | manual |
Braking system | independent contracting band |
Cabin type | Open operator station |
Differentiel lock | - |
System | open center |
Valves | - |
Pump flow | 5.75 gpm or 21.8 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2133 psi or 147.1 bar |
Max flow | - |
Drawbar type | - |
Claimed power | 46.7 hp or 34.8 kW |
Drawbar horsepower | 46.73 hp or 34.8 kW |
Fuel consumption | 3.6 gal/hour or 13.6 l/hour |
Pulling power | 6,944 lbs or 3149 kg |
Claimed power | 53.7 hp or 40.0 kW |
Real power | 47.66 hp or 35.5 kW |
Engine @RPM | 540@1970 (rpm) |
PTO Clutch | - |
Rear PTO | - |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 3.2 gal/hour or 12.1 l/hour |
Hitch system | - |
Rear hitch | II/I |
Rear hitch lift | 2660 lbs or 1206 kg |
Front hitch | - |
Front hitch lift | - |
Related tractor comparison


Long 550 Allis Chalmers 7030


Challenger MT645 Massey Ferguson 1200


Long 550 International Harvester 453


Challenger MT645 John Deere 4620


Long 550 Oliver 1955


Long 550 Leyland 255
Choose another tractor
Useful links and guides ....
- Challenger provided us with the latest version of its MT645 service repair manual
- Find All mechanical and electrical parts and accessories of Challenger MT645 farm-tractor here
- Get your Long 550 manual book version
- Cabine, electrical And mechanical parts for Long 550 farm-tractor here