Challenger MT525E

Last Updated: July 2024

Overview

The Challenger MT525E is a powerful tractor equipped with an AGCO Power engine featuring 6 cylinders, liquid cooling, turbocharging, and intercooling. It utilizes a TechStar Continuously Variable Transmission (CVT) for seamless and infinite forward and reverse operations. The engine delivers a maximum power output of 142.0 hp at 1900 rpm and a peak torque of 461 lb-ft at 1400 rpm with a torque rise of 32.7%. The tractor meets Tier IV emissions standards with selective catalytic reduction (SCR) and a dry element air cleaner. Independent testing revealed detailed specifications, including maximum force exerted at hitch points, pump delivery rates, hydraulic power, drawbar performance, and comprehensive power and fuel consumption metrics under various operating conditions.

Key Specifications

Power Output: 142.0 @ 1900 rpm

Transmission: TechStar Continuously Variable Transmission (CVT)

Fuel Type: Diesel

Technical Specifications

Engine

Manufacturer: AGCO Power
Model: -
Cooling Type: Liquid
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): 142.0 @ 1900 rpm

Transmission

Type: TechStar Continuously Variable Transmission (CVT)
Forward Gears: Infinite
Reverse Gears: Infinite
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: -
Hitch Category: 2
Hitch Position: Rear
Hitch Capacity (lb): -
Operator Station Type: -
Starter Type: Electric (12V)
Brake Type: -
Hydraulic System Type: Closed-Center Load Sensing

Test Results

Nebraska Tractor Test Laboratory - Test Date: June to July 2016

Maximum Power and Fuel Consumption

Maximum Power: 142.0 HP (105.9 kW) at 1900 rpm
Fuel Consumption at Maximum Power: 7.99 Gal/hr (30.24 l/h) with a fuel efficiency of 0.303 lb/hp.hr (0.184 kg/kW.h)
DEF Consumption: 0.50 Gal/hr (1.89 l/h)

Drawbar Performance

Power at Rated Engine Speed (9th Gear): 110.8 HP (82.66 kW) with a drawbar pull of 6740 lbs (30.0 kN) and a speed of 6.50 mph (10.46 km/h)
Fuel Consumption at Rated Speed: 0.473 lb/hp.hr (0.287 kg/kW.h) with a fuel efficiency of 14.76 Hp.hr/gal (2.91 kW.h/l)

Torque and Engine Performance

Maximum Torque: 461 lb.-ft. (626 Nm) at 1400 rpm
Torque Rise: 32.7% with a power increase at 1700 rpm of 4.07%

Hydraulic Performance

Maximum Force Exerted: 4830 lbs (21.5 kN) at hitch points
Pump Delivery Rate: 25.3 GPM (95.6 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 30.1 HP (22.5 kW) at delivery pressure of 2160 psi (149 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 17.32 Hp.hr/gal (3.41 kW.h/l)
Fuel Consumption: 7.90 Gal/hr (29.87 l/h) at 2030 rpm

NTTL.(2016).Nebraska Tractor Summary S1066 for Challenger MT525E. Lincoln, NE: University of Nebraska-Lincoln, Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/3360