Challenger MT645B VS Kubota M4900 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 M4900
General InfosMake | Kubota |
Model | M4900 |
Country | Japan |
Production | From 2001 Until 2008 |
Price | - |
Tractor type | - |
Fuel | - |
Service repair manual | Kubota M4900 Manual |
Dimensions, sizes and tires
AG front tires | 8.3-24 (2WD) |
AG rear tires | 14.9-28 |
Lawn front tires | 9.00-10 (2WD) |
Lawn rear tires | 9.00-10 (2WD) |
Indus front tires | 12.5/80-18 R4 |
Indus rear tires | 16.9-24 R4 |
Weight | 2WD ROPS Shipping: |
Length | 137 inches 347 cm |
Width | 67.2 inches 170 cm |
Height | 97.8 inches 248 cm |
Wheelbase | 81.7 inches 207 cm |
Ground clearance | - |
Turning radius | - |
Rear tread size | 51.9 to 67.7 inches |
Front tread size | 55.9 to 71.7 inches |
Turning radius | 4497 lbs 2039 kg |
Horsepower and engin specs
Engine capacity | - |
Cylinders | 5 cylinders |
Engine power | 49.5 hp 36.9 kW |
Engine RPM | 2600 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | - |
Fuel injection | - |
Fuel tank size | 17.2 gal 65.1 L |
Oil capacity | 8.5 qts 8.0 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Kubota M4900 Parts |
Batteries number | 1 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 700 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 60 amps |
Trans system | - |
Trans type | synchronized shuttle |
Trans gears | 12 forward and reverse |
Clutch system | - |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | mechanical wet disc |
Cabin type | Two-post folding ROPS |
Differentiel lock | - |
System | - |
Valves | - |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 45 hp 33.6 kW |
Real power | - |
Engine @RPM | - |
PTO Clutch | - |
Rear PTO | live |
Rear PTO RPM | 540 (rpm) |
Front PTO | - |
Front PTO RPM | - |
Mid PTO | - |
Mid PTO RPM | - |
Fuel consumption | - |
Hitch system | position control and top-link draft sensing |
Rear hitch | II/I |
Rear hitch lift | 4200 lbs 1905 kg |
Front hitch | - |
Front hitch lift | - |
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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 M4900 manual book version
- Cabine, electrical And mechanical parts for Kubota M4900 farm-tractor here