John Deere 8R 340

Last Updated: July 2024

Overview

The John Deere 8R 340 is a Row-Crop tractor designed for various field applications. It features a 4x4 MFWD 4WD chassis with hydrostatic steering for precise control. The tractor is equipped with an e23 Transmission, a selective gear fixed ratio with full range operator-controlled power shift, offering 23 forward and 11 reverse gears. Its turbocharged 6-cylinder diesel engine has a displacement of 548 cubic inches, with a bore of 4.661 inches and a stroke of 5.354 inches. The engine produces a maximum power output of 346.2 hp at 2100 RPM. The tractor's rear tires are four 480/80R50, and the front tires are two 420/85R34. Its operating weight is 28,705 lbs, with a length of 252.8 inches and a height of 137.8 inches. Additional features include a wet multiple disc hydraulically actuated clutch, wet multiple disc hydraulically operated brakes, and a 12-volt starting system. The engine serial number is RG6090U087418.

Key Specifications

Category: Row Crop

Power Output: 346.2

Transmission: e23 Transmission, selective gear fixed ratio with full range operator controlled power shift

Drive Type: MFWD 4WD

Operating Weight: 28705

Fuel Type: Diesel

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John Deere 8R 340 Tractor

John Deere 8R 340 vs. Similar Tractors

Power Output

Excellent

Greater than 90% 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: 2100
Power Output (hp): 346.2

Transmission

Type: e23 Transmission, 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): 28705

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: MFWD 4WD
Steering Type: Hydrostatic
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: Rear Tires - Four 480/80R50, Front Tires - Two 420/85R34
Manufacture - End Year: -
Hitch Type: -
Hitch Category: Category 3
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: September 17 to October 1, 2020

Maximum Power and Fuel Consumption

Rated Engine Speed: 303.33 HP (226.20 kW) at 2100 rpm
Fuel Consumption at Rated Engine Speed: 15.79 gal/hr (59.78 l/h) with a fuel efficiency of 0.364 lb/hp.hr (0.221 kg/kW.h)
DEF Consumption at Rated Engine Speed: 0.71 gal/hr (2.68 l/h)

Drawbar Performance

Power at Rated Engine Speed (10th Gear): 267.86 HP (199.74 kW) with a drawbar pull of 18776 lbs (83.52 kN) and a speed of 5.35 mph (8.61 km/h)
Fuel Consumption at Rated Speed (10th Gear): 0.410 lb/hp.hr (0.249 kg/kW.h) with a fuel efficiency of 17.04 Hp.hr/gal (3.36 kW.h/l)

Torque and Engine Performance

Maximum Torque: 1143 lb.-ft. (1550 Nm) at 1549 rpm
Torque Rise: 50.7% with a power increase at 1701 rpm of 14.1%

Hydraulic Performance

Maximum Force Exerted: 20254 lbs (90.1 kN) at hitch points
Pump Delivery Rate: 60.4 GPM (228.5 l/min) at minimum pressure and rated engine speed
Hydraulic Power: 87.2 HP (65.0 kW) at delivery pressure of 2485 psi (171 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 19.75 Hp.hr/gal (3.89 kW.h/l)
Fuel Consumption at Standard PTO Speed: 16.93 gal/hr (64.09 l/h)

NTTL.(2021). Nebraska OECD Tractor test 2222 for John Deere 8R 340 Diesel. Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from http://tractortestlab.unl.edu