John Deere 9R 390

Last Updated: July 2024

Overview

The John Deere 9R 390 is a high-powered, large-scale tractor built for heavy-duty applications. Its John Deere JD14 engine is a 6-cylinder, 24-valve, liquid-cooled, turbocharged aftercooled diesel with 826 cubic inches displacement. It delivers a maximum power of 370.61 hp at 1800 RPM, with a maximum torque of 1184 lb-ft at 1499 RPM. The e18 full power shift transmission offers 18 forward and 6 reverse gears. The tractor's dimensions include a length of 312.8 inches and a cab height of 147.3 inches. It has an unladen weight of 46800 lbs and uses ag tires. The hydraulic system is a closed center pressure/flow compensated type with a combined flow of 116.4 GPM. Additional features include wet multiple disc hydraulically actuated brakes.

Key Specifications

Power Output: 370.61

Transmission: Full power shift

Operating Weight: 46800

Fuel Type: Diesel

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John Deere 9R 390 Tractor

Technical Specifications

Engine

Manufacturer: John Deere
Model: JD14
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: 24-valve
Fuel Type: Diesel
Induction Type: Turbocharged aftercooled
Cylinders: 6
Displacement (ci): 826
Bore (in): 5.197
Stroke (in): 6.496
Rated RPM: 2100
Power Output (hp): 370.61

Transmission

Type: Full power shift
Forward Gears: 18
Reverse Gears: 6
Total Gears: -

Dimensions

Length (in): 312.8
Width (in): -
Height (in): 147.3
Operating Weight (lb): 46800

Power Take-Off (PTO)

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

Miscellaneous

Chassis: -
Drive Type: -
Steering Type: -
Coolant Capacity (qts): 59.7
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: -
Hitch Type: -
Hitch Category: Category 4N
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 21 to 27, 2022

Maximum Power and Fuel Consumption

Rated Engine Speed (PTO speed—1108 rpm): 323.38 HP (241.14 kW) at 2099 rpm
Maximum Power (1 hour): 370.61 HP (276.36 kW) at 1800 rpm
Fuel Consumption at Maximum Power: 19.93 Gal/hr (75.46 l/h) with a fuel efficiency of 0.378 lb/hp.hr (0.230 kg/kW.h)
DEF Consumption at Maximum Power: 0.81 Gal/hr (3.06 l/h)

Drawbar Performance

Power at Rated Engine Speed (7th Gear): 296.94 HP (221.42 kW) with a drawbar pull of 21456 lbs (95.44 kN) and a speed of 5.19 mph (8.35 km/h)
Fuel Consumption at Rated Speed: 0.443 lb/hp.hr (0.270 kg/kW.h) with a fuel efficiency of 15.88 Hp.hr/gal (3.13 kW.h/l)
Maximum Power in 1st Gear: 277.57 HP (206.98 kW) with a drawbar pull of 44435 lbs (197.66 kN) and a speed of 2.34 mph (3.77 km/h)

Torque and Engine Performance

Maximum Torque: 1184 lb.-ft. (1606 Nm) at 1499 rpm
Torque Rise: 46.4% with a power increase at 1800 rpm of 14.6%

Hydraulic Performance

Maximum Force Exerted (Category 4N): 21408 lbs (95.2 kN)
Pump Delivery Rate at Minimum Pressure: 58.4 GPM (220.9 l/min) at rated engine speed
Hydraulic Power: 82.2 HP (61.3 kW) at delivery pressure of 2429 psi (167 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 18.33 Hp.hr/gal (3.61 kW.h/l)
Fuel Consumption: 19.87 Gal/hr (75.22 l/h) at 1895 rpm

NTTL.(2023).Nebraska OECD Tractor test 2258 for John Deere 9R 390 Diesel.Lincoln, NE:Nebraska Tractor Test Laboratory. Retrieved from http://tractortestlab.unl.edu