Challenger MT645B VS Fiat M135 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 |

Fiat M135
General InfosMake | Fiat |
Model | M135 |
Country | Italy |
Production | From 1996 Until 1999 |
Price | 56,000 USD |
Tractor type | - |
Fuel | diesel |
Service repair manual | Fiat M135 Manual |
Dimensions, sizes and tires
AG front tires | 11.00-16 |
AG rear tires | 18.4R3 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 11,836 lbs or 5368 kg |
Length | 180 inches [457 cm] (2WD) |
Width | 84 inches [213 cm] (min) |
Height | 111.5 inches [283 cm] |
Wheelbase | 108.3 inches [275 cm] (2WD) |
Ground clearance | - |
Turning radius | - |
Rear tread size | 60.2 to 87.9 inches |
Front tread size | 60.7 to 86.1 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 456 ci or 7.5 L |
Cylinders | 6 cylinders |
Engine power | 135 hp or 100.7 kW |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | 1400 (rpm) |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 85 gal or 321.7 L |
Oil capacity | 20.8 qts or 19.7 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Fiat M135 Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 900 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 70 amps |
Trans system | Range Command |
Trans type | partial power shift |
Trans gears | 18 forward and 6 reverse |
Clutch system | wet disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | hydrostatic power |
Braking system | differential hydraulic wet disc |
Cabin type | Two-post ROPS |
Differentiel lock | Rear (2WD) or front and rear (4WD) with push-button operation |
System | closed center load sensing |
Valves | 2 to 4 |
Pump flow | 26 gpm or 98.4 lpm |
SVC flow | - |
Steering flow | 16.4 gpm or 62.1 lpm |
Tank capacity | 23.7 gal or 89.7 L |
Hydraulic pressure | 2755 psi or 190.0 bar |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 100 hp or 74.6 kW |
Fuel consumption | - |
Pulling power | - |
Claimed power | 115 hp or 85.8 kW |
Real power | 119 hp or 88.7 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 | - |
Hitch system | - |
Rear hitch | II/III |
Rear hitch lift | 12,000 lbs or 5443 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 Fiat M135 manual book version
- Cabine, electrical And mechanical parts for Fiat M135 farm-tractor here