John Deere 8235R

Last Updated: July 2024

Overview

The John Deere 8235R is a high-powered 4x4 row-crop tractor with a 6-cylinder, 9.0L turbocharged and air-to-air aftercooled diesel engine producing 235.14 HP at 1751 RPM and 757 lb-ft of maximum torque at 1452 RPM with a 46.7% torque rise. It has a 16.0:1 compression ratio, selective gear fixed ratio transmission with full power shift and 16 forward and 4 reverse gears. Key specifications were updated based on independent test results, including chassis type, engine details, hydraulic system capabilities, operating weight, and detailed performance data for drawbar operation, PTO output, fuel consumption, and hydraulic output. Additional lubricant, filter, and noise level information was added.

Key Specifications

Category: Row Crop

Power Output: 235.14 @ 1751 rpm

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

Operating Weight: 25570

Fuel Type: No. 2 Diesel, Specific gravity: 0.8409

Lift Capacity: 18326 lbs force exerted

John Deere 8235R vs. Similar Tractors

Power Output

Above Average

Greater than 80% of similar tractors.

Operating Weight

Above Average

Greater than 80% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: PowerTech PSX
Cooling Type: liquid-cooled with 2 thermostats and variable speed fan
Cylinder Orientation: Vertical
Valve Configuration: -
Fuel Type: No. 2 Diesel, Specific gravity: 0.8409
Induction Type: turbocharged with air-to-air aftercooler
Cylinders: 6
Displacement (ci): 548
Bore (in): 4.661
Stroke (in): 5.354
Rated RPM: 2100
Power Output (hp): 235.14 @ 1751 rpm

Transmission

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

Dimensions

Length (in): 243.7
Width (in): 95.7 (Axle), 118.1 (Long axle)
Height (in): 138.6
Operating Weight (lb): 25570

Power Take-Off (PTO)

PTO Type: Independent
PTO Speed 1 (rpm): 1000 @ 2004 engine rpm
PTO Speed 2 (rpm): Optional 1000 or 540
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x4 FWA with duals
Drive Type: -
Steering Type: hydrostatic power
Coolant Capacity (qts): 43.3
Front Tire Diameter (in): 34
Front Tire Width (in): -
Rear Tire Diameter (in): 50
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: -
Manufacture - End Year: 2013
Hitch Type: Category III and IV
Hitch Category: Category 3/3N
Hitch Position: Rear
Hitch Capacity (lb): 18326 lbs force exerted
Operator Station Type: CommandView II cab standard
Starter Type: Electric
Brake Type: Wet multiple disc hydraulically operated by two foot pedals that can be locked together
Hydraulic System Type: Hydraulic control system direct engine drive

Test Results

Nebraska Tractor Test Laboratory - Test Date: October 5-12, 2011

Maximum Power and Fuel Consumption

Maximum Power: 235.14 HP (175.34 kW) at 1751 rpm
Fuel Consumption at Maximum Power: 12.53 Gal/hr (47.44 l/h) with a fuel efficiency of 0.373 lb/hp.hr (0.227 kg/kW.h)
Standard PTO Power: 226.47 HP (168.88 kW) at 2003 rpm with a fuel efficiency of 18.06 Hp.hr/gal (3.56 kW.h/l)

Drawbar Performance

Maximum Power in 8th Gear: 180.59 HP (134.66 kW) with a drawbar pull of 14061 lbs (62.55 kN) and a speed of 4.82 mph (7.75 km/h)
Fuel Consumption at Maximum Power: 0.469 lb/hp.hr (0.285 kg/kW.h) with a fuel efficiency of 14.94 Hp.hr/gal (2.94 kW.h/l)

Torque and Engine Performance

Maximum Torque: 757 lb.-ft. (1027 Nm) at 1452 rpm
Torque Rise: 46.7% with a power increase at 1751 rpm of 13.9%

Hydraulic Performance

Maximum Force Exerted: 18326 lbs (81.5 kN) at hitch points
Pump Delivery Rate at Minimum Pressure: 48.0 GPM (181.7 l/min) for a 63cc pump and 64.0 GPM (242.3 l/min) for an 85cc pump
Hydraulic Power: 72.2 HP (53.9 kW) for a 63cc pump and 90.0 HP (67.1 kW) for an 85cc pump at delivery pressures of 2590 psi (179 bar) and 2404 psi (166 bar) respectively

Overall Efficiency

Fuel Efficiency at Rated PTO Speed (2100 rpm): 17.31 Hp.hr/gal (3.41 kW.h/l)
Fuel Consumption at Rated Speed: 11.93 Gal/hr (45.15 l/h)

NTTL.(2011). Nebraska OECD Tractor Test 2001 for John Deere 8235R Diesel. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2406