Challenger MT545B VS Ursus 4512 specs comparison

Challenger MT545B
General InfosMake | Challenger |
Model | MT545B |
Country | United states |
Production | From 2004 Until 2011 |
Price | - |
Tractor type | Row Crop tractor |
Fuel | diesel |
Service repair manual | Challenger MT545B Manual |
Dimensions, sizes and tires
AG front tires | 11.00-16 (2WD) |
AG rear tires | 580/70R38 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 11,052 lbs or 5013 kg |
Length | 168.5 inches [427 cm] |
Width | 81.1 inches [205 cm] |
Height | 112.8 inches [286 cm] |
Wheelbase | 112.1 inches [284 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 55.5 to 91 inches |
Front tread size | 64.1 to 83 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 365.2 ci or 6.0 L |
Cylinders | 6 cylinders |
Engine power | 143 hp or 106.6 kW |
Engine RPM | 2200 (rpm) |
Torque | - | Torque RPM | - |
Fuel type | diesel |
Fuel injection | - |
Fuel tank size | 71 gal or 268.7 L |
Oil capacity | 15.3 qts or 14.5 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Challenger MT545B Parts |
Batteries number | 2 |
Batteries voltage | 12 V |
Battries Amps | - |
Cold Amps | 420 |
Ground force | negative |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 120 amps |
Trans system | TechStar CVT |
Trans type | continuously variable transmission |
Trans gears | infinite (2-range) forward and reverse |
Clutch system | hydraulic wet disc |
Wheel drive | 4x2 2WD |
Final drive | inboard planetary |
Steering | power |
Braking system | hydraulic wet disc |
Cabin type | Cab standard with heat and A/C |
Differentiel lock | electro-hydraulic front and rear |
System | closed center pressure flow compensating |
Valves | 2 to 4 |
Pump flow | - |
SVC flow | - |
Steering flow | - |
Tank capacity | 18.5 gal or 70.0 L |
Hydraulic pressure | 2900 psi or 200.0 bar |
Max flow | 29 gpm or 109.8 lpm |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | 100.4 hp or 74.9 kW |
Fuel consumption | 8.0 gal/hour or 30.3 l/hour |
Pulling power | 14,690 lbs or 6663 kg |
Claimed power | 115 hp or 85.8 kW |
Real power | 124.6 hp or 92.9 kW |
Engine @RPM | 540@1980 (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 | 8.0 gal/hour or 30.3 l/hour |
Hitch system | - |
Rear hitch | II/III |
Rear hitch lift | 9,391 lbs or 4259 kg |
Front hitch | optional |
Front hitch lift | 5,500 lbs or 2494 kg |

Ursus 4512
General InfosMake | Ursus |
Model | 4512 |
Country | Poland |
Production | From 1988 Until 2011 |
Price | - |
Tractor type | - |
Fuel | diesel |
Service repair manual | Ursus 4512 Manual |
Dimensions, sizes and tires
AG front tires | 7.5-16 |
AG rear tires | 16.9R30 |
Lawn front tires | - |
Lawn rear tires | - |
Indus front tires | - |
Indus rear tires | - |
Weight | 5401 lbs or 2449 kg |
Length | 148.6 inches [377 cm] |
Width | 76 inches [193 cm] |
Height | 99.2 inches [251 cm] |
Wheelbase | 88.8 inches [225 cm] |
Ground clearance | - |
Turning radius | - |
Rear tread size | 59.1 to 81.2 inches |
Front tread size | 55.1 to 70.9 inches |
Turning radius | - |
Horsepower and engin specs
Engine capacity | 235.9 ci or 3.9 L |
Cylinders | 4 cylinders |
Engine power | 66 hp or 49.2 kW |
Engine RPM | 2000 (rpm) |
Torque | 180.7 lb-ft or 245.0 Nm | Torque RPM | 1400 (rpm) |
Fuel type | diesel |
Fuel injection | direct injection |
Fuel tank size | 21.1 gal or 79.9 L |
Oil capacity | 7.4 qts or 7.0 L |
Oil change | - |
Starter motor | - |
Starter volts | 12 V |
Parts And Accessories | Ursus 4512 Parts |
Batteries number | - |
Batteries voltage | 12 V |
Battries Amps | 120 amps |
Cold Amps | - |
Ground force | - |
Charging system | alternator |
Charging Volts | - |
Charging Amps | 55 amps |
Trans system | - |
Trans type | creeper |
Trans gears | 12 forward and 3 reverse |
Clutch system | dry disc |
Wheel drive | 4x2 2WD |
Final drive | - |
Steering | power |
Braking system | mechanical wet disc |
Cabin type | Cab optional with available heater |
Differentiel lock | mechanical rear |
System | - |
Valves | - |
Pump flow | 6.9 gpm or 26.1 lpm |
SVC flow | - |
Steering flow | - |
Tank capacity | 11.6 gal or 43.9 L |
Hydraulic pressure | - |
Max flow | - |
Drawbar type | - |
Claimed power | - |
Drawbar horsepower | - |
Fuel consumption | - |
Pulling power | - |
Claimed power | 59 hp or 44.0 kW |
Real power | - |
Engine @RPM | 540@1686 (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 and draft control |
Rear hitch | II |
Rear hitch lift | 5291 lbs or 2399 kg |
Front hitch | - |
Front hitch lift | - |
Related tractor comparison


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Useful links and guides ....
- Challenger provided us with the latest version of its MT545B service repair manual
- Find All mechanical and electrical parts and accessories of Challenger MT545B farm-tractor here
- Get your Ursus 4512 manual book version
- Cabine, electrical And mechanical parts for Ursus 4512 farm-tractor here