Compare/John Deere 8370RT vs John Deere 9R 390

John Deere 8370RT vs John Deere 9R 390

Verdict: John Deere 8370RT vs John Deere 9R 390

The John Deere 8370RT and the John Deere 9R 390 are both tractors — here is how they stack up on the figures that matter. John Deere 9R 390 leads on rated power with 385 hp against 370 hp. John Deere 9R 390 is the newer design (2021 vs 2014). In short: choose the John Deere 9R 390 for outright pulling power, or the John Deere 8370RT if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

John Deere

Fit score

Best match

Clear

John Deere

Fit score

Best match

Clear

Rated power

370 hp

385 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

John DeereReference

liquid-cooledReference

With group 48 tires.Reference

Trailer brakes

dual line air (optional)Reference

—

Final drives

—

inboard planetaryReference

Differential lock

—

electro-hydraulic front and rearReference

Variants

8370R

wheeled tractorReference

—

8370RT

crawlerReference

—

Engine

Engine (gross)

275.9 kWReference

287.0 kWReference

Displacement

9.0 LReference

13.6 LReference

Bore/Stroke

118 x 136 mmReference

132 x 165 mmReference

Emissions

Tier 4BReference

Tier IVReference

Emission control

selective catalyst reductionReference

—

Rated Power (gross)

275.9 kWReference

287.0 kWReference

Starter

electricReference

Starter volts

12Reference

Fuel Type

DieselReference

No of Cylinders

6 cylinderReference

6Reference

Emissions compliance

Tier 4B | selective catalyst reductionReference

Final Tier 4 (FT4)Reference

Bore and stroke

4.66x5.35 inchesReference

—

Cooling system

liquid-cooledReference

56.5 LReference

Fuel tank

—

1514.0 LReference

Exhaust fluid (DEF)

—

120.0 LReference

Engine (max)

—

316.0 kWReference

Maximum Power (gross)

—

316.0 kWReference

Fuel system

—

electronic high-pressure common railReference

Air cleaner

—

dryReference

Compression

—

15.9:1Reference

Rated RPM

—

2100Reference

Torque

—

1800.8 NmReference

Torque RPM

—

1550Reference

Oil capacity

—

64.0 LReference

Oil change

—

500 hReference

Coolant capacity

—

56.5 LReference

Engine torque at rated speed

—

Option 1: 2,100 rpm\\nOption 2: 1,800 NmReference

Interval for engine oil change

—

500 hoursReference

Interval for engine coolant change

—

6,000 hoursReference

Transmission

John Deere AutoPowrReference

e18Reference

Gears

infinite forward and reverseReference

18 forward and 6 reverseReference

Transmission Type

IVTReference

PowershiftReference

forward and reverse options

infinite forward and reverseReference

—

Wheel Drive

4WDReference

Rear Axle Drive Type

—

Inboard planetary with double-reduction axleReference

Interval for hydraulic/transmission oil change

—

1,500 hoursReference

PTO & Hydraulics

PTO (claimed)

111.9 kWReference

249.8 kWReference

Hydraulic system

40.1 LReference

—

Type

infinitely variable transmission (IVT)Reference

full power shiftReference

Capacity

40.1 LReference

827 cu. in.Reference

Rear valves

4 to 6Reference

—

Pump flow

227.1 lpmReference

416.4 lpmReference

SCV flow

159.0 lpmReference

Rear Type

IVN/IIIReference

IVN/IVReference

Rear lift

9072 kgReference

—

Drawbar

Cat 4 Heavy-Duty optionalReference

—

Rear PTO

independentReference

Rear PTO Type

1000 (1.75)Reference

Front PTO

optional independentReference

—

Front PTO Type

1000 (1.375)Reference

—

Pressure

—

200.0 barReference

Valves

—

4 to 8Reference

Rear lift (at 24"/610mm)

—

9072 kgReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

240Reference

330Reference

Batteries

2Reference

3Reference

Battery CCA

925 (each)Reference

—

Battery volts

12Reference

Total cold cranking amps

925 (each) CCAReference

3 x 925 CCA\\nTotal: 2,775 CCAReference

Alternator size

—

250 ampReference

Battery options

—

12 VReference

General

Make & Model

John DeereReference

MJDXL13.5,334Reference

Cruise control

TRUEReference

—

SCV control

JOYSTICKReference

ElectronicReference

Drawbar category

Cat 4 | Cat 4 Heavy-Duty optionalReference

Category 4 or Category 5Reference

Country of manufacturer

USAReference

Drawbar Maximum vertical load

—

5,443.1 kgReference

Rear Axle Type

—

Diameter: 120 x 3,048 mm\\n4.72 x 120 in.Reference

Rear Axle Differential Lock

—

Full-locking electrohydraulicReference

Front Axle Type

—

Diameter: 120 x 3,048 mm\\n4.72 x 120 in.Reference

Front Axle Differential Lock

—

Full-locking electrohydraulicReference

Type of headlight bulb

—

Standard: halogen, 65 W\\nOptional: LEDReference

Power

Max Power

370 hpReference

429 hpReference

Rated Power

—

390 hpReference

Power boost

—

10 percentReference

PTO

PTO Power

308 hpReference

335 hpReference

Rear PTO Power

AvailableReference

Rear PTO RPM

1,000 RPMReference

1,000 rpmReference

Front PTO Power

AvailableReference

—

PTO torque rise

—

38 percentReference

Rear PTO Control

—

ElectrohydraulicReference

Steering & brakes

Brakes

hydraulic wet discReference

—

Hydraulics

Hydraulics Type

closed-center load sensing pressure flow compensatedReference

—

Remote Valves

4 to 6 ValvesReference

4Reference

Rear Hitch category (SAE designation)

Category IVN/IIIReference

4NReference

Rear Hitch maximum lift capacity

9,071.8 kgReference

15,000Reference

Pump Rated Output (total)

—

416 l/minReference

Rear Hitch Sensing Type

—

Electrohydraulic with draft sensingReference

Operator station

Cab Availability

AvailableReference

Seat Suspension

TRUEReference

—

Cab glass area

—

71.47 sq ftReference

Cab space

—

115 cu ftReference

Cab Seat Type

—

ActiveSeat™ IIReference

Dimensions

Wheelbase

—

391 cmReference

Weight

—

20856 kgReference

Front tire

—

710/70R42Reference

Rear tire

—

710/70R42Reference

Ag front

—

710/70R42Reference

Ag rear

—

710/70R42Reference

Length

—

794 cmReference

Width

—

440 cmReference

Height (cab)

—

374 cmReference

Height (exhaust)

—

373 cmReference

Shipping weight

—

20856 kgReference

Max weight

—

28123 kgReference

Front axle

—

119 by 3048 mmReference

Rear axle

—

119 by 3048 mmReference

Speeds

Capacities

Diesel exhaust fluid (DEF) tank

—

120 LReference

Crankcase oil volume

—

16.9 U.S. galReference

Dimensions & weight

Drawbar clearance

—

527 mmReference

Turning radius

—

6.1 mReference

Overall weight

—

20,856.2 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.