Kubota M8580 VS Challenger MT445B specs comparison

Kubota M8580
General InfosMake | Kubota |
Model | M8580 |
Country | Japan |
Production | From 1991 Until 1999 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | Kubota M8580 Manual |
Dimensions, sizes and tires
AG front tires | 13.6-24 |
AG rear tires | 18.4-34 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 8377 lbs or 3799 kg |
Length | 161.8 inches [410 cm] |
Width | 79.5 inches [201 cm] |
Height | 104.6 inches [265 cm] |
Wheelbase | 96.1 inches [244 cm] |
Ground clearance | 24.2 inches [61 cm] |
Turning radius | - |
Rear tread size | 59.1 to 83.1 inches |
Front tread size | 64.6 to 68.5 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 284.7 ci or 4.7 L |
Cylinders | 4 cylinders |
Engine power | 85 hp or 63.4 kW |
Engine RPM | 2400 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | direct injection |
Fuel tank size | 27.7 gal or 104.8 L |
Oil capacity | - |
Oil change | - |
Starter motor | electric |
Starter volts | 12 V |
Parts And Accessories | Kubota M8580 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 | mechanical shuttle |
Trans gears | 12 forward and reverse |
Clutch system | - |
Wheel drive | 4x4 MFWD 4WD |
Final drive | - |
Steering | power |
Braking system | hydraulic wet disc |
Cabin type | Four-post ROPS |
Differentiel lock | - |
System | open center |
Valves | 2 or 3 |
Pump flow | 21.1 gpm or 79.9 lpm |
SVC flow | - |
Steering flow | 8.5 gpm or 32.2 lpm |
Tank capacity | - |
Hydraulic pressure | - |
Max flow | 29.6 gpm or 112.0 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 80 hp or 59.7 kW |
Real power | - |
Engine @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 | - |
Hitch system | position and draft control |
Rear hitch | II |
Rear hitch lift | 5809 lbs or 2634 kg |
Front hitch | - |
Front hitch lift | - |

Challenger MT445B
General InfosMake | Challenger |
Model | MT445B |
Country | United states |
Production | From 2004 Until 2013 |
Price | - |
Tractor type | Utility tractor |
Fuel | diesel |
Service repair manual | Challenger MT445B Manual |
Dimensions, sizes and tires
AG front tires | 10.00-16 (2WD) |
AG rear tires | 480/70R38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 8,840 lbs or 4009 kg |
Length | - |
Width | - |
Height | - |
Wheelbase | 97 inches [246 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | - |
Front tread size | - |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 268 ci or 4.4 L |
Cylinders | 4 cylinders |
Engine power | 85 hp or 63.4 kW |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 40 gal or 151.4 L |
Oil capacity | - |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Challenger MT445B Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | - |
Ground force | negative |
Charging system | - |
Charging Volts | - |
Charging Amps | - |
Trans system | Autopower IV |
Trans type | four speed power shift |
Trans gears | 16 forward and reverse |
Clutch system | wet disc |
Wheel drive | 4x2 2WD |
Final drive | inboard planetary |
Steering | hydrostatic power |
Braking system | hydraulic wet disc |
Cabin type | ROPS |
Differentiel lock | electro-hydraulic |
System | - |
Valves | 2 to 4 |
Pump flow | 26.4 gpm or 99.9 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | - |
Hydraulic pressure | 2900 psi or 200.0 bar |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 60.5 hp or 45.1 kW |
Fuel consumption | 4.9 gal/hour or 18.5 l/hour |
Pulling power | 8680 lbs or 3937 kg |
Claimed power | 70 hp or 52.2 kW |
Real power | 73.4 hp or 54.7 kW |
Engine @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 | 4.8 gal/hour or 18.2 l/hour |
Hitch system | electronic top-link draft control |
Rear hitch | II |
Rear hitch lift | 7285 lbs or 3304 kg |
Front hitch | - |
Front hitch lift | - |
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Useful links and guides ....
- Kubota provided us with the latest version of its M8580 service repair manual
- Find All mechanical and electrical parts and accessories of Kubota M8580 farm-tractor here
- Get your Challenger MT445B manual book version
- Cabine, electrical And mechanical parts for Challenger MT445B farm-tractor here