Challenger MT645B VS Kubota M6800 specs comparison

Challenger MT645B
General InfosMake | Challenger |
Model | MT645B |
Country | United states |
Production | From 2005 Until 2008 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | Challenger MT645B Manual |
Dimensions, sizes and tires
AG front tires | 380/85R34 |
AG rear tires | 480/80R46 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 18,308 lbs or 8304 kg |
Length | 206 inches [523 cm] |
Width | 118 inches [299 cm] |
Height | 123.6 inches [313 cm] |
Wheelbase | 121.1 inches [307 cm] |
Ground clearance | 22.4 inches [56 cm] |
Turning radius | - |
Rear tread size | 60 to 88 inches |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 449 ci or 7.4 L |
Cylinders | 6 cylinders 24 valves |
Engine power | 235 hp or 175.2 kW |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 159 gal or 601.8 L |
Oil capacity | 20 qts or 18.9 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Challenger MT645B Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 775 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 150 amps |
Trans system | TechStar |
Trans type | continuously variable transmission (CVT) |
Trans gears | infinite (2-range) forward and reverse |
Clutch system | - |
Wheel drive | 4x4 MFWD 4WD |
Final drive | inboard planetary |
Steering | power |
Braking system | hydraulic wet disc |
Cabin type | Cab standard with heat and A/C |
Differentiel lock | electrohydraulic front and rear |
System | pressure flow compensated |
Valves | 4 to 6 |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | 26.4 gal or 99.9 L |
Hydraulic pressure | 2900 psi or 200.0 bar |
Max flow | 39 gpm or 147.6 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 172.30 hp or 128.5 kW |
Fuel consumption | 12.0 gal/hour or 45.4 l/hour |
Pulling power | 16,954 lbs or 7690 kg |
Claimed power | 200 hp or 149.1 kW |
Real power | 221.55 hp or 165.2 kW |
Engine @RPM | 540@2037 (rpm) |
PTO Clutch | electro-hydraulic wet disc |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 12.0 gal/hour or 45.4 l/hour |
Hitch system | - |
Rear hitch | III |
Rear hitch lift | 15,600 lbs or 7076 kg |
Front hitch | II |
Front hitch lift | 7,700 lbs or 3492 kg |

Kubota M6800
General InfosMake | Kubota |
Model | M6800 |
Country | Japan |
Production | From 1997 Until 2005 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | Kubota M6800 Manual |
Dimensions, sizes and tires
AG front tires | - |
AG rear tires | 7.50-16 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 5055 lbs or 2292 kg |
Length | 134.6 inches [341 cm] |
Width | 73.2 inches [185 cm] |
Height | 98.4 inches [249 cm] |
Wheelbase | 83.7 inches [212 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 55.9 to 67.7 inches |
Front tread size | 55.9 to 71.7 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 202 ci or 3.3 L |
Cylinders | 4 cylinders |
Engine power | 70.9 hp or 52.9 kW |
Engine RPM | 2600 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 17.2 gal or 65.1 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Kubota M6800 Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 60 amps |
Trans system | - |
Trans type | power shuttle |
Trans gears | 8 forward and reverse |
Clutch system | hydraulic wet disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | power |
Braking system | - |
Cabin type | Two-post folding ROPS |
Differentiel lock | - |
System | open center |
Valves | 1 |
Pump flow | 11 gpm or 41.6 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 57 hp or 42.5 kW |
Fuel consumption | 4.3 gal/hour or 16.3 l/hour |
Pulling power | 7235 lbs or 3281 kg |
Claimed power | 62 hp or 46.2 kW |
Real power | 62.9 hp or 46.9 kW |
Engine @RPM | 540@2300 (rpm) |
PTO Clutch | hydraulic wet disc |
Rear PTO | independent |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | 4.0 gal/hour or 15.1 l/hour |
Hitch system | position control and top-link draft sensing |
Rear hitch | II/I |
Rear hitch lift | 3310 lbs or 1501 kg |
Front hitch | - |
Front hitch lift | - |
Related tractor comparison


Kubota M6800 Renault Cergos 350


Kubota M6800 New Holland 1630


Challenger MT645B JCB Fastrac 2125


Kubota M6800 Belarus 2045


Kubota M6800 Kubota GL321


Kubota M6800 Massey Ferguson 5150
Choose another tractor
Useful links and guides ....
- Challenger provided us with the latest version of its MT645B service repair manual
- Find All mechanical and electrical parts and accessories of Challenger MT645B farm-tractor here
- Get your Kubota M6800 manual book version
- Cabine, electrical And mechanical parts for Kubota M6800 farm-tractor here