John Deere 8R 310

Last Updated: July 2024

Overview

The John Deere 8R 310 is a robust row-crop tractor featuring a 4x4 MFWD 4WD chassis and a selective gear fixed ratio transmission with full range operator controlled power shift. It is powered by a liquid-cooled, 6-cylinder, turbocharged John Deere engine with a displacement of 548 cubic inches, producing up to 310 horsepower at 2100 rpm. The engine has a compression ratio of 16.0 to 1, a DOC, SCR, and regenerative DPF exhaust system, and a turbo boost range of 22.4 - 25.4 psi (measured at 24.2 psi). Cooling is managed by a thermostat and variable speed fan. Key dimensions include a length of 252.8 inches, height of 137.8 inches, and an operating weight of 29,115 lbs with an operator. Rear tires are four 480/80R50, and front tires are two 420/85R34. Additional notable features include a maximum torque of 1051 lb.-ft. at 1550 rpm, a drawbar height of 20.5 inches, and detailed performance data for drawbar operation, power take-off, and hydraulic system available from independent test results.

Key Specifications

Category: Row Crop

Power Output: 310

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

Drive Type: Four-wheel drive (4WD)

Operating Weight: 29115

Fuel Type: Diesel

John Deere 8R 310 vs. Similar Tractors

Power Output

Above Average

Greater than 88% of similar tractors.

Operating Weight

Above Average

Greater than 80% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: -
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged
Cylinders: 6
Displacement (ci): 548
Bore (in): 4.661
Stroke (in): 5.354
Rated RPM: -
Power Output (hp): 310

Transmission

Type: Selective gear fixed ratio with full range operator controlled power shift
Forward Gears: 23
Reverse Gears: 11
Total Gears: -

Dimensions

Length (in): 252.8
Width (in): -
Height (in): 137.8
Operating Weight (lb): 29115

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x4 MFWD 4WD
Drive Type: Four-wheel drive (4WD)
Steering Type: Power
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: Standard (ag)
Manufacture - End Year: -
Hitch Type: -
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: Cab
Starter Type: Electric
Brake Type: -
Hydraulic System Type: Closed-center pressure flow compensated

Test Results

Nebraska Tractor Test Laboratory - Test Date: April 1 - 15, 2021

Maximum Power and Fuel Consumption

Maximum Power (1 hour): 318.37 HP (237.41 kW) at 1700 rpm
Fuel Consumption at Maximum Power: 15.51 Gal/hr (58.72 l/h) with a fuel efficiency of 0.341 lb/hp.hr (0.207 kg/kW.h)
DEF Consumption: 0.59 Gal/hr (2.25 l/h)

Drawbar Performance

Power at Rated Engine Speed (9th Gear): 249.75 HP (186.23 kW) with a drawbar pull of 20434 lbs (90.89 kN) and a speed of 4.58 mph (7.37 km/h)
Fuel Consumption at Rated Speed: 0.408 lb/hp.hr (0.248 kg/kW.h) with a fuel efficiency of 17.16 Hp.hr/gal (3.38 kW.h/l)

Torque and Engine Performance

Maximum Torque: 1051 lb.-ft. (1424 Nm) at 1550 rpm
Torque Rise: 50.1% with a power increase at 1700 rpm of 13.7%

Hydraulic Performance

Maximum Force Exerted: 20254 lbs (90.1 kN) through the whole range
Pump Delivery Rate: 61.2 GPM (231.5 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 87.5 HP (65.2 kW) at delivery pressure of 2472 psi (170 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 19.77 Hp.hr/gal (3.90 kW.h/l)
Fuel Consumption: 15.35 Gal/hr (58.10 l/h) at 1995 rpm

NTTL.(2021). Nebraska OECD tractor test 2233 for John Deere 8R 310 e23 Diesel. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from http://tractortestlab.unl.edu