Challenger MT845

Last Updated: June 2024

Overview

The Challenger MT845 is a robust machine that's capable of meeting intense farming requirements. Its engine, a Caterpillar C12, is turbocharged and diesel-fueled, consisting of 6 inline cylinders. It has an impressive power output of 380hp and a displacement of 729 ci. The tractor is equipped with a full power shift transmission system having 16 forward and 4 reverse gears. With a length of 265.9 inches and a width of 142.1 inches, it accommodates vast farming operations. Moreover, its gigantic stature with a height of 138.1 inches and a hefty weight of 40000 lbs. exemplifies its capability to carry heavy loads effortlessly. Embedded with an electric starter and a hydraulic wet disc brake system, it guarantees comfort for operators. However, the type of operator station, PTO type, and additional features are not identified from the provided data. Despite the missing details, the MT845 remains a stalwart in the field.

Key Specifications

Power Output: 380

Transmission: Full Power Shift

Operating Weight: 40000

Fuel Type: Diesel

Image Gallery

Challenger MT845 Tractor

Technical Specifications

Engine

Manufacturer: Caterpillar
Model: C12
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged
Cylinders: 6
Displacement (ci): 729
Bore (in): 5.118
Stroke (in): 5.906
Rated RPM: 2100
Power Output (hp): 380

Transmission

Type: Full Power Shift
Forward Gears: 16
Reverse Gears: 4
Total Gears: -

Dimensions

Length (in): 265.9
Width (in): 142.1
Height (in): 138.1
Operating Weight (lb): 40000

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: -
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: Electric
Brake Type: Hydraulic Wet Disc
Hydraulic System Type: Closed Center Load Sensing

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 23 to May 13, 2003

Maximum Power and Fuel Consumption

Maximum Power: 393.14 HP (293.16 kW) at 1700 rpm
Fuel Consumption at Maximum Power: 20.07 Gal/hr (75.96 l/h) with a fuel efficiency of 0.356 lb/hp.hr (0.217 kg/kW.h)
Standard PTO Speed (1000 rpm): 365.34 HP (272.43 kW) at 1980 rpm with 19.35 Gal/hr (73.26 l/h)

Drawbar Performance

Maximum Power—6th Gear: 297.93 HP (222.17 kW) with a drawbar pull of 25006 lbs (111.23 kN) at 4.47 mph (7.19 km/h) with 2.20% slip
Fuel Consumption at Maximum Power—6th Gear: 0.444 lb/hp.hr (0.270 kg/kW.h) with a fuel efficiency of 15.72 Hp.hr/gal (3.10 kW.h/l)

Hydraulic Performance

Maximum Force Exerted: 20936 lbs (93.1 kN) at hitch points
High Flow Option Pump Delivery Rate: 60.9 GPM (230.5 l/min) at 2200 engine rpm
Hydraulic Power: 85.2 HP (63.5 kW) at delivery pressure of 2674 psi (184 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 18.88 Hp.hr/gal (3.72 kW.h/l)
Fuel Consumption at Varying Power: At 2100 rpm, it averages 18.62 Gal/hr (70.49 l/h) with a fuel efficiency of 18.14 Hp.hr/gal (3.57 kW.h/l)

Torque and Engine Performance

Maximum Torque: 1326 lb.-ft. (1797 Nm) at 1400 rpm
Torque Rise: 57.0% with 44% rise at 1701 engine rpm

NTTL. (2003). Nebraska OECD Tractor Test 1824 for Challenger MT845 Diesel. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/349