AGCO Corporation MT875C

Last Updated: July 2024

Overview

The Challenger MT875C is a high-performance tractor manufactured by AGCO Corporation and equipped with a powerful Caterpillar C18 ACERT turbocharged aftercooled diesel engine. This 6-cylinder, 24-valve engine has a displacement of 1105 ci, a compression ratio of 16.3:1, and produces 586.45 hp at 2100 rated RPM. The transmission is a selective gear fixed ratio with full range operator-controlled power shift, offering 16 forward and 4 reverse gears. The tractor utilizes electro-hydraulic differential steering controlled by a steering wheel. It has wet multiple disc hydraulically actuated foot pedal brakes and a PTO operating at 1000 rpm at 1980 engine rpm. The hydraulic system uses AGCO 821 XL fluid, with a standard pump delivering 44.5 GPM at 2692 psi and a high flow pump delivering 62.5 GPM at 2729 psi. The overall length is 270 inches, width is 141.8 inches, and height is 138.1 inches. The operating weight with ballast is 56,000 lbs.

Key Specifications

Power Output: 586.45

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

Operating Weight: 56,000

Fuel Type: No. 2 Diesel Specific gravity 0.8445

Technical Specifications

Engine

Manufacturer: Caterpillar
Model: C18 ACERT
Cooling Type: Liquid-cooled
Cylinder Orientation: -
Valve Configuration: 24-valve
Fuel Type: No. 2 Diesel Specific gravity 0.8445
Induction Type: Turbocharged aftercooled
Cylinders: 6
Displacement (ci): 1105
Bore (in): 5.71
Stroke (in): 7.2
Rated RPM: 2100
Power Output (hp): 586.45

Transmission

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

Dimensions

Length (in): 270
Width (in): 141.8
Height (in): 138.1
Operating Weight (lb): 56,000

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 differential steering controlled by steering wheel
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: -
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: Electric
Brake Type: Wet multiple disc hydraulically actuated foot pedal
Hydraulic System Type: Closed center pressure-flow compensated

Test Results

Nebraska Tractor Test Laboratory - Test Date: November 11-20, 2009

Maximum Power and Fuel Consumption

Maximum Power: 586.45 HP (437.32 kW) at 1750 rpm
Fuel Consumption at Maximum Power: 32.23 Gal/hr (122.02 l/h) with a fuel efficiency of 0.387 lb/hp.hr (0.235 kg/kW.h)
Standard Power Take-off Speed (1000 rpm): 556.48 HP (414.97 kW) at 1979 rpm with a fuel efficiency of 0.418 lb/hp.hr (0.254 kg/kW.h)

Drawbar Performance

Maximum Power (8th Gear): 441.14 HP (328.96 kW) with a drawbar pull of 29161 lbs (129.72 kN) and a speed of 5.67 mph (9.12 km/h)
Fuel Consumption at Maximum Power (8th Gear): 0.520 lb/hp.hr (0.316 kg/kW.h) with a fuel efficiency of 13.54 Hp.hr/gal (2.67 kW.h/l)

Torque and Engine Performance

Maximum Torque: 2002 lb.-ft. (2714 Nm) at 1300 rpm
Torque Rise: 53.5% with a power increase at 1750 rpm of 12.5%

Hydraulic Performance

Standard Pump Delivery Rate: 44.5 GPM (168.5 l/min) at minimum pressure and rated engine speed with a hydraulic power of 67.5 HP (50.4 kW) at a delivery pressure of 2692 psi (186 bar)
High Flow Pump Delivery Rate: 62.5 GPM (236.6 l/min) at minimum pressure and rated engine speed with a hydraulic power of 93.5 HP (69.7 kW) at a delivery pressure of 2729 psi (188 bar)

Overall Efficiency

Fuel Efficiency at Rated Engine Speed: 16.15 Hp.hr/gal (3.18 kW.h/l)
Fuel Consumption at Rated Engine Speed: 32.28 Gal/hr (122.18 l/h) at 2100 rpm

NTTL.(2009).Nebraska OECD Tractor test 1965 for Challenger MT875C Diesel. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2334