Challenger MT555E

Last Updated: July 2024

Overview

The Challenger MT555E is a powerful tractor featuring a 6-cylinder, liquid-cooled turbocharged intercooled diesel engine from AGCO Power. It delivers a maximum power of 170.3 hp at 2100 rpm. The tractor utilizes a Continuously Variable Transmission (CVT) with speed ranges up to 25 mph forward and 19 mph reverse. It's equipped with a Category III rear hitch, closed-center load sensing hydraulic system, and multiple wet disc hydraulically operated brakes. The MT555E boasts impressive hydraulic performance with a pump delivery rate of 29 GPM and maximum force of 13900 lbs at hitch points. It features a front-wheel assist chassis type and is designed with operator comfort in mind, with a cab sound level of 70.0 dB(A) at no load.

Key Specifications

Power Output: 170.3 (Maximum Power at 2100 rpm)

Transmission: Continuously Variable Transmission (CVT)

Fuel Type: Diesel

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Challenger MT555E Tractor

Technical Specifications

Engine

Manufacturer: AGCO Power
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: -
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged intercooled
Cylinders: 6
Displacement (ci): 402
Bore (in): 4.252
Stroke (in): 4.724
Rated RPM: 2100
Power Output (hp): 170.3 (Maximum Power at 2100 rpm)

Transmission

Type: Continuously Variable Transmission (CVT)
Forward Gears: Low range 0-19 mph (0-30 km/h), high range 0-25 mph (0-40 km/h)
Reverse Gears: Low range 0-19 mph (0-30 km/h), high range 0-19 mph (0-30 km/h)
Total Gears: -

Dimensions

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

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: III
Hitch Category: -
Hitch Position: Rear
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: Electric
Brake Type: -
Hydraulic System Type: Closed-center load sensing, Direct engine drive

Test Results

Nebraska Tractor Test Laboratory - Test Date: February to March, 2016

Maximum Power and Fuel Consumption

Maximum Power: 170.3 HP (127.0 kW) at 2100 rpm
Fuel Consumption at Maximum Power: 9.41 Gal/hr (35.6 l/h) with a fuel efficiency of 0.370 lb/hp.hr (0.225 kg/kW.h)
DEF Consumption: 0.68 Gal/hr (2.6 l/h)

Drawbar Performance

Power at Rated Engine Speed (10th Gear): 113.7 HP (84.8 kW) with a drawbar pull of 7570 lbs (33.7 kN) and a speed of 5.15 mph (8.28 km/h)
Fuel Consumption at Rated Speed: 0.464 lb/hp.hr (0.282 kg/kW.h) with a fuel efficiency of 15.05 Hp.hr/gal (2.97 kW.h/l)

Torque and Engine Performance

Maximum Torque: 581 lb.-ft. (788.6 Nm) at 1000 rpm
Torque Rise: 53.2% with a power increase at 1798 rpm of 40%

Hydraulic Performance

Maximum Force Exerted: 13900 lbs (61.8 kN) at hitch points
Pump Delivery Rate: 29 GPM (110 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 33.9 HP (25.2 kW) at delivery pressure of 1990 psi (137 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 18.87 Hp.hr/gal (3.72 kW.h/l)
Fuel Consumption: 8.07 Gal/hr (30.55 l/h) at 2100 rpm