Challenger MT755E

Last Updated: July 2024

Overview

The Challenger MT755E is a powerful utility tractor with a 599 ci, 7-cylinder turbocharged diesel engine from AGCO POWER. Independent testing revealed a maximum power output of 326.14 hp at 1800 rpm and a peak torque of 1160 lb-ft at 1101 rpm. It features a selective gear transmission with 16 forward and 4 reverse gears. The hydraulic system can deliver up to 59.4 GPM flow rate and 92.7 hp of hydraulic power. Drawbar performance at rated speed is 252.35 hp with a 16,795 lb pull. Sound levels were measured at 72 dB(A) in the cab and 89.7 dB(A) for bystanders.
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Key Specifications

Category: Utility

Power Output: 326.14

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

Operating Weight: 33235

Fuel Type: Diesel

Lift Capacity: 17263

Challenger MT755E vs. Similar Tractors

Power Output
Excellent
Greater than 95% of similar tractors.
Hitch Capacity
Above Average
Greater than 85% of similar tractors.
Operating Weight
Above Average
Greater than 73% of similar tractors.

Technical Specifications

Engine

Manufacturer
AGCO POWER
Model
-
Cooling Type
Water to air intercooler, air to air intercooler, with a coolant heat exchanger
Cylinder Orientation
-
Valve Configuration
Seven-cylinder vertical with two turbochargers
Fuel Type
Diesel
Induction Type
Turbocharged
Cylinders
7
Displacement (ci)
599
Bore (in)
4.37
Stroke (in)
5.709
Rated RPM
2100
Power Output (hp)
326.14

Transmission

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

Dimensions

Length (in)
-
Width (in)
34
Height (in)
-
Operating Weight (lb)
33235

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
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
Category IVN/III
Hitch Category
Category 3
Hitch Position
Rear
Hitch Capacity (lb)
17263
Operator Station Type
-
Starter Type
Electric
Brake Type
Wet multiple disc hydraulically actuated by foot pedal
Hydraulic System Type
Closed-center pressure-flow compensated (PFC)

Test Results

Nebraska Tractor Test Laboratory - Test Date: May 27 to June 2, 2014

Maximum Power and Fuel Consumption

  • Maximum Power: 326.14 HP (243.20 kW) at 1800 rpm
  • Fuel Consumption at Maximum Power: 18.01 Gal/hr (68.16 l/h) with a fuel efficiency of 0.387 lb/hp.hr (0.236 kg/kW.h)
  • DEF Consumption: 1.26 Gal/hr (4.78 l/h)

Drawbar Performance

  • Power at Rated Engine Speed (8th Gear): 252.35 HP (188.18 kW) with a drawbar pull of 16795 lbs (74.71 kN) and a speed of 5.64 mph (9.07 km/h)
  • Fuel Consumption at Rated Speed: 0.511 lb/hp.hr (0.311 kg/kW.h) with a fuel efficiency of 13.72 Hp.hr/gal (2.70 kW.h/l)

Torque and Engine Performance

  • Maximum Torque: 1160 lb.-ft. (1573 Nm) at 1101 rpm
  • Torque Rise: 62.7% with a power increase at 1800 rpm of 14.5%

Hydraulic Performance

  • Maximum Force Exerted: 17263 lbs (76.8 kN) at hitch points
  • Standard Pump Delivery Rate: 59.4 GPM (224.9 l/min) at minimum pressure and rated engine speed
  • Hydraulic Power: 92.7 HP (69.1 kW) at delivery pressure of 2836 psi (196 bar)

Overall Efficiency

  • Fuel Efficiency at Standard PTO Speed (1000 rpm): 16.89 Hp.hr/gal (3.33 kW.h/l)
  • Fuel Consumption: 18.71 Gal/hr (70.82 l/h) at 1980 rpm

    Nebraska Tractor Test Lab. (2014). Test 2087: Challenger MT755E. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2521

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