Challenger MT865

Last Updated: July 2024

Overview

The Challenger MT865 is a powerful tractor equipped with a Caterpillar C16 turbocharged diesel engine. This liquid-cooled, 6-cylinder, inline engine has a displacement of 964 cubic inches with a bore and stroke of 5.512x6.732 inches, respectively. The engine is capable of a maximum power output of 523.60 HP at 1750 RPM and a rated power of 444.19 HP at 2100 RPM. The transmission is a selective gear fixed ratio with full operator-controlled power shift, featuring 16 forward and 4 reverse gears. The tractor has a maximum torque of 1757 lb.-ft. at 1398 rpm and a torque rise of 58.3%. The hydraulic system is a closed-center load-sensing type, with a maximum force exerted of 20936 lbs, a pump delivery rate of 43.5 GPM, and a hydraulic power of 67.9 HP at delivery pressure of 2755 psi. The tractor has an unladen mass of 44220 lbs and can be ballasted up to 56000 lbs. It features a tracklayer-rubber tracked chassis, electro-hydraulic differential steering, and a wet multiple disc hydraulically actuated foot pedal brake system. The drawbar performance shows a maximum power of 378.75 HP with a drawbar pull of 32240 lbs at a speed of 4.41 mph. The overall fuel efficiency at standard PTO speed is 18.32 Hp.hr/gal, with a fuel consumption of 26.80 Gal/hr at 1980 rpm.

Key Specifications

Power Output: 444.19

Transmission: Selective gear fixed ratio with full operator-controlled power shift

Operating Weight: 44220 (Unladen tractor mass)

Fuel Type: Turbocharged diesel

Technical Specifications

Engine

Manufacturer: Caterpillar
Model: C16
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Turbocharged diesel
Induction Type: Turbocharged
Cylinders: 6
Displacement (ci): 964
Bore (in): 5.512
Stroke (in): 6.732
Rated RPM: 2100
Power Output (hp): 444.19

Transmission

Type: Selective gear fixed ratio with full operator-controlled power shift
Forward Gears: 16
Reverse Gears: 4
Total Gears: -

Dimensions

Length (in): 265.9
Width (in): 142.1
Height (in): 138.7 (Exhaust Height)
Operating Weight (lb): 44220 (Unladen tractor mass)

Power Take-Off (PTO)

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

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: -
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: IVN
Hitch Category: -
Hitch Position: Rear
Hitch Capacity (lb): -
Operator Station Type: Cab (Assumed based on the presence of Cab Height)
Starter Type: 12 volts
Brake Type: Wet multiple disc hydraulically actuated foot pedal
Hydraulic System Type: Closed center load sensing

Test Results

Nebraska Tractor Test Laboratory - Test Date: October 7 to November 21, 2002

Maximum Power and Fuel Consumption

Maximum Power: 523.60 HP (390.45 kW) at 1750 rpm
Fuel Consumption at Maximum Power: 27.01 Gal/hr (102.24 l/h) with a fuel efficiency of 0.362 lb/hp.hr (0.220 kg/kW.h)
Power at Rated Engine Speed (2100 rpm): 444.19 HP (331.24 kW)

Drawbar Performance

Maximum Power: 378.75 HP (282.43 kW) with a drawbar pull of 32240 lbs (143.41 kN) and a speed of 4.41 mph (7.09 km/h)
Fuel Consumption at Maximum Power: 0.472 lb/hp.hr (0.287 kg/kW.h) with a fuel efficiency of 14.88 Hp.hr/gal (2.93 kW.h/l)

Torque and Engine Performance

Maximum Torque: 1757 lb.-ft. (2383 Nm) at 1398 rpm
Torque Rise: 58.3%

Hydraulic Performance

Maximum Force Exerted: 20936 lbs (93.1 kN) through the whole range
Pump Delivery Rate: 43.5 GPM (164.7 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 67.9 HP (50.6 kW) at delivery pressure of 2755 psi (190 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 18.32 Hp.hr/gal (3.61 kW.h/l)
Fuel Consumption: 26.80 Gal/hr (101.45 l/h) at 1980 rpm

NTTL.(2002).Nebraska OECD Tractor test 1815 for Challenger MT865 Diesel. Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/353