Challenger MT745

Last Updated: June 2024

Overview

The Challenger MT745 is equipped with a Caterpillar turbocharged diesel engine, offering 255 horsepower. The engine has 6 liquid-cooled vertical cylinders with a displacement of 537 cubic inches and a rated RPM of 2100. The MT745 offers a full-power shift transmission with an impressive 30 forward and 8 reverse gears. For steering, the MT745 uses electro-hydraulic steering, ensuring smooth and precise steering capabilities. The tractor has a significant operating weight of 28195 lbs, ensuring stability during heavy-duty operations. The MT745 features a category III rear hitch for versatile implement attachment and comes with a reliable electric starter system.

Key Specifications

Power Output: 255

Transmission: Full Power Shift / Creeper

Operating Weight: 28195

Fuel Type: Diesel

Technical Specifications

Engine

Manufacturer: Caterpillar
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: Vertical
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged
Cylinders: 6
Displacement (ci): 537
Bore (in): 4.409
Stroke (in): 5.866
Rated RPM: 2100
Power Output (hp): 255

Transmission

Type: Full Power Shift / Creeper
Forward Gears: 30
Reverse Gears: 8
Total Gears: -

Dimensions

Length (in): -
Width (in): -
Height (in): -
Operating Weight (lb): 28195

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: Electro-hydraulic
Coolant Capacity (qts): -
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: -
Manufacture - End Year: -
Hitch Type: Rear
Hitch Category: III
Hitch Position: Rear
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: Electric
Brake Type: Hydraulic wet disc
Hydraulic System Type: -

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 16 to May 19, 2003

Maximum Power and Fuel Consumption

Maximum Power: 236.19 HP (176.13 kW) at 1700 rpm
Fuel Consumption at Maximum Power: 12.37 Gal/hr (46.83 l/h) with a fuel efficiency of 0.366 lb/hp.hr (0.222 kg/kW.h)
Standard Power Take-off Speed: 220.81 HP (164.66 kW) at 1982 rpm

Drawbar Performance

Maximum Power in 6th Gear: 177.67 HP (132.49 kW) with a drawbar pull of 15116 lbs (67.24 kN) and a speed of 4.41 mph (7.09 km/h)
Fuel Consumption at Maximum Drawbar Power: 0.477 lb/hp.hr (0.290 kg/kW.h) with a fuel efficiency of 14.64 Hp.hr/gal (2.88 kW.h/l)
75% of Pull at Maximum Power (6th Gear): 140.78 HP (104.98 kW) with a drawbar pull of 11323 lbs (50.36 kN) and a speed of 4.66 mph (7.50 km/h)

Torque and Engine Performance

Maximum Torque: 804 lb.-ft. (1090 Nm) at 1200 rpm
Torque Rise: 54.7% with a power increase at 1700 rpm of 40%

Hydraulic Performance

Maximum Force Exerted: 17263 lbs (76.8 kN) at hitch points
Pump Delivery Rate: 43.8 GPM (165.8 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 66.6 HP (49.7 kW) at delivery pressure of 2750 psi (190 bar)

NTTL.(2003).Nebraska OECD Tractor test 1822 for Challenger MT745 Diesel. Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/342