John Deere 9R 390
The John Deere 9R 390 is a tractor produced by John Deere. It is equipped with a 826.9 ci 13.6 L engine. The listed engine power is Diesel (gross): 384.9 hp / 287.0 kW. Transmission: e18. Operating weight: 45980 lbs 20856 kg.
Engine Power
Diesel (gross): 384.9 hp / 287.0 kW
Fuel & Capacities
400 gal
1514.0 L
Transmission
e18
Operating Weight
45980 lbs
20856 kg
Overview
 | 2021 -
9R SeriesFour-wheel Drive (4WD) tractor |
|---|---|
2021 - | |
9R Series | |
Four-wheel Drive (4WD) tractor | |
Production | |
|---|---|
Manufacturer | John Deere |
Four-wheel Drive (4WD) tractor | |
Built in Waterloo, Iowa, USA | |
Original price was $520,995 in 2023 | |
John Deere 9R 390 Engine | |
|---|---|
John Deere 13.6L 6-cyl diesel | |
Fuel tank | 400 gal
1514.0 L |
Exhaust fluid (DEF) | 31.7 gal
120.0 L |
Engine details ...  | |
John Deere 9R 390 Transmission | |
|---|---|
18-speed full power shift | |
Transmission details ...  |
John Deere 9R 390 Power | |
|---|---|
Engine (gross) | 384.9 hp
287.0 kW |
Engine (max) | 423.8 hp
316.0 kW |
PTO (claimed) | 335 hp
249.8 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Final drives | inboard planetary |
Differential lock | electro-hydraulic front and rear |
Articulated power steering | |
Hydraulic wet disc brakes | |
Cab standard with air-conditioning. | |
Hydraulics | |
|---|---|
Type | closed center pressure/flow compensated |
Pressure | 2900 psi
200.0 bar |
Valves | 4 to 8 |
Pump flow | 55 gpm
208.2 lpm |
110 gpmOptOptional
416.4 lpm | |
SCV flow | 35 gpm
132.5 lpm |
42 gpm*Optional, 3/4 inch coupler
159.0 lpm | |
Tractor hitch | |
|---|---|
Rear Type | IVN/IV |
Rear lift (at 24"/610mm) | 15000 lbs
6804 kg |
20000 lbs
9072 kg | |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 1000 (1.75) |
Dimensions & Tires | |
|---|---|
Wheelbase | 154 inches
391 cm |
Weight | 45980 lbs
20856 kg |
Front tire | 710/70R42 |
Rear tire | 710/70R42 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 250 |
330 OptOptional | |
Batteries | 3 |
Battery volts | 12 |
References | |
|---|---|
 | |
9 Series Tractors published in 2022, by John Deere | |
Operator's Manual 9R Tractors (OMTR118780) published in 2021 |
Engine
Engine Detail — 826.9 ci / 13.6 L Diesel
Manufacturer | John Deere JD14 |
Configuration | turbocharged aftercooled diesel, 6-cylinder 24-valve, liquid-cooled inline |
Displacement | 826.9 ci
13.6 L |
Bore/Stroke | 5.20x6.50 inches
132 x 165 mm |
Emissions | Tier IV |
Rated Power (gross) | 384.9 hp
287.0 kW |
Maximum Power (gross) | 423.8 hp
316.0 kW |
Fuel system | electronic high-pressure common rail |
Air cleaner | dry |
Compression | 15.9:1 |
Rated RPM | 2100 |
Torque | 1328 lb-ft
1800.8 Nm |
Torque RPM | 1550 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 67.6 qts
64.0 L |
Oil change | 500 h |
Coolant capacity | 59.7 qts
56.5 L |
John Deere 9R 390 Engine | |
|---|---|
 |
Transmission
Transmission — e18
Transmission | e18 |
Type | full power shift |
Gears | 18 forward and 6 reverse |
With group 48 tires. | |
 | |
Dimensions
John Deere 9R 390 Tires | |
|---|---|
Ag front | 710/70R42 |
Ag rear | 710/70R42 |
Dimensions | |
|---|---|
Wheelbase | 154 inches
391 cm |
Length | 312.8 inches
794 cm |
Width | 173.3 inches*Minimum width over tires.
440 cm |
Height (cab) | 147.3 inches
374 cm |
Height (exhaust) | 147.1 inches
373 cm |
Shipping weight | 45980 lbs
20856 kg |
Max weight | 62000 lbs
28123 kg |
Front axle | 4.72 by 120 inches
119 by 3048 mm |
Rear axle | 4.72 by 120 inches
119 by 3048 mm |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 9R 390 based on its 384.9 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁 | Commercial / Field Scale | High horsepower articulated/4WD field plowing. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙 | Commercial / Field Scale | Broad-acre grain tillage for high-drawbar tractors. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere 9R 390.
Estimated Continuous Field Runtime: 20 hrs
Approximately 20 hours of continuous field operation at ~75% rated power on a full tank (400 gal / 1514.2 L).
Estimated 75% Load Fuel Burn~20 gal/hr (75.8 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
John Deere 9R 390 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 9R 390.
Converted Equivalents:
Horsepower (HP)384.9 hp
Kilowatts (kW)287 kW
Metric Horsepower (PS / CV)390.2 PS
Direct Competitor Comparison
Compare John Deere 9R 390 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 9R 390
Engine Power:Diesel (gross): 384.9 hp / 287.0 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 4786
Engine Power:350
Production Years:1978 - 1981
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