Kubota M135X

Last Updated: July 2024

Overview

The Kubota M135X row-crop tractor is powered by a Kubota V6108-TI 4-cylinder turbocharged intercooled diesel engine with a displacement of 374 cubic inches (6124 ml), bore of 4.646 inches, and stroke of 5.512 inches. It has a compression ratio of 17.5 to 1 and a rated power output of 135 hp at 2200 rpm. The engine produces a maximum torque of 396 lb-ft at 1200 rpm with a torque rise of 35.9% occurring at 1802 rpm. The transmission is a selective gear fixed ratio with partial (8) range operator-controlled power shift, offering 16 forward and 16 reverse gears. Key dimensions include a length of 171.7 inches, width of 89 inches, and height of 107.1 inches. The operating weight is 10,141 lbs, but with ballast, it increases to 14,405 lbs (8,935 lbs rear, 5,470 lbs front). Additional notable features include hydraulic performance details, tire tread widths, and sound level measurements from the independent test results.

Key Specifications

Category: Row Crop

Power Output: 135

Transmission: Selective gear fixed ratio with partial (8) range operator-controlled power shift

Drive Type: MFWD 4WD

Operating Weight: 10,141

Fuel Type: Diesel

Kubota M135X vs. Similar Tractors

Power Output

Average

Greater than 45% of similar tractors.

Hitch Capacity

Poor

Greater than 6% of similar tractors.

Operating Weight

Poor

Greater than 3% of similar tractors.

Technical Specifications

Engine

Manufacturer: Kubota
Model: V6108-TI
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged intercooled
Cylinders: 4
Displacement (ci): 374
Bore (in): 4.646
Stroke (in): 5.512
Rated RPM: 2200
Power Output (hp): 135

Transmission

Type: Selective gear fixed ratio with partial (8) range operator-controlled power shift
Forward Gears: 16
Reverse Gears: 16
Total Gears: -

Dimensions

Length (in): 171.7
Width (in): 89
Height (in): 107.1
Operating Weight (lb): 10,141

Power Take-Off (PTO)

PTO Type: Independent with hydraulic wet disc clutch
PTO Speed 1 (rpm): 540
PTO Speed 2 (rpm): 1,000
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x4 MFWD 4WD
Drive Type: MFWD 4WD
Steering Type: Hydrostatic power
Coolant Capacity (qts): 15.9
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: Ag
Manufacture - End Year: 2014
Hitch Type: -
Hitch Category: II
Hitch Position: Rear
Hitch Capacity (lb): 5,810
Operator Station Type: Cab standard with heat and air-conditioning
Starter Type: Electric
Brake Type: Hydraulic wet disc
Hydraulic System Type: Open center

Test Results

Nebraska Tractor Test Laboratory - Test Date: October 27 to November 4, 2010

Maximum Power and Fuel Consumption

Rated Engine Speed: 121.99 HP (90.97 kW) at 2201 rpm
Fuel Consumption at Rated Engine Speed: 7.63 Gal/hr (28.87 l/h) with a fuel efficiency of 0.437 lb/hp.hr (0.266 kg/kW.h) and 16.00 Hp.hr/gal (3.15 kW.h/l)
Maximum Power (1 hour): 123.20 HP (91.87 kW) at 2149 rpm

Drawbar Performance

Power at Maximum Power (9th Gear): 103.87 HP (77.45 kW) with a drawbar pull of 7445 lbs (33.11 kN) and a speed of 5.23 mph (8.42 km/h) at 2196 rpm
Fuel Consumption at Maximum Power: 0.516 lb/hp.hr (0.314 kg/kW.h) with a fuel efficiency of 13.55 Hp.hr/gal (2.67 kW.h/l)

Torque and Engine Performance

Maximum Torque: 396 lb.-ft. (537 Nm) at 1200 rpm
Torque Rise: 35.9% with a rise at 1802 engine rpm of 16%

Hydraulic Performance

Maximum Force Exerted: 7344 lbs (32.7 kN) with 2 assist cylinders
Pump Delivery Rate: 20.8 GPM (78.7 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 26.0 HP (19.4 kW) at delivery pressure of 2799 psi (193 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (540 rpm): 16.84 Hp.hr/gal (3.32 kW.h/l)
Fuel Consumption: 7.17 Gal/hr (27.14 l/h) at 1994 rpm

Nebraska Tractor Test Lab. (2010). Test 1980: Kubota M135X. University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2370