Compare/John Deere 8RX 310 vs John Deere 9420

John Deere 8RX 310 vs John Deere 9420

Verdict: John Deere 8RX 310 vs John Deere 9420

The John Deere 8RX 310 and the John Deere 9420 are both tractors — here is how they stack up on the figures that matter. John Deere 9420 leads on rated power with 312 hp against 310 hp. John Deere 8RX 310 is the lighter machine (19,504 kg vs 34,870 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 8RX 310 is the newer design (2019 vs 2002). In short: choose the John Deere 9420 for outright pulling power, or the John Deere 8RX 310 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Acreage600 acBudgetMain crop / use

Fit & specs

John Deere

Fit score

Best match

Clear

John Deere

Fit score

Best match

Clear

Rated power

310 hp

312 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

John DeereReference

liquid-cooledReference

With 800/70R38 tires.Reference

Drive

crawlerReference

—

Differential lock

electro-hydraulic front and rearReference

—

Steering

—

hydrostatic articulatedReference

Variants

8R 310

wheeledReference

—

8RT 310

two-trackReference

—

8RX 310

four-trackReference

—

9420T

—

crawler tractorReference

Engine

Fuel tank

927.3 LReference

—

Exhaust fluid (DEF)

37.1 LReference

—

Engine (gross)

231.2 kWReference

—

Engine (max)

254.3 kWReference

—

Displacement

9.0 LReference

12.5 LReference

Bore/Stroke

118 x 136 mmReference

127 x 165 mmReference

Emissions

Tier IVReference

—

Rated Power (gross)

231.2 kWReference

—

Maximum Power (gross)

254.3 kWReference

—

Fuel system

electronic high-pressure common railReference

—

Compression

16.0:1Reference

17:1Reference

Starter

electricReference

—

Starter volts

12Reference

Fuel Type

DieselReference

—

Emissions compliance

Final Tier 4Reference

—

Engine torque at rated speed

Option 1: 2,100 rpm\\nOption 2: 1,452 NmReference

—

Interval for engine oil change

500 hoursReference

—

Interval for engine coolant change

6,000 hoursReference

—

Cooling system

42.3 LReference

—

Engine

—

316.9 kWReference

Drawbar (tested)

—

257.3 kWReference

Power

—

316.9 kWReference

Air cleaner

—

dryReference

Rated RPM

—

2100Reference

Operating RPM

—

1500-2100Reference

Coolant capacity

—

60.6 LReference

Oil capacity

—

137.8 LReference

Power at rated engine speed

—

232.8 kWReference

Max power

—

257.3 kWReference

Transmission

e23Reference

John Deere PowershiftReference

Gears

infinite forward and reverseReference

18 forward and 6 reverseReference

Transmission Type

PowershiftReference

—

Wheel Drive

MFWDReference

—

Rear Axle Drive Type

Inboard planetaryReference

—

Interval for hydraulic/transmission oil change

1,500 hoursReference

—

PTO & Hydraulics

PTO (claimed)

191.6 kWReference

235.6 kWReference

Type

infinitely variable transmissionReference

full power shiftReference

Pressure

204.0 barReference

200.0 barReference

Rear valves

4 to 6Reference

—

Pump flow

317.9 lpmReference

113.6 lpmReference

SCV flow

159.0 lpmReference

—

Rear Type

IVN/IIIReference

IV/IVNReference

Control

electro-hydraulic draft sensingReference

—

Rear lift (at 24"/610mm)

6894 kgReference

—

Rear PTO

independentReference

Rear PTO Type

1000 (1.75)Reference

1000Reference

Engine RPM

1000@2000Reference

—

PTO (tested)

—

232.8 kWReference

Hydraulic system

—

117.3 LReference

Valves

—

4 or 5Reference

Total flow

—

295.2 lpmReference

Rear lift

—

6552 kgReference

Power at rated PTO speed

—

256.1 kWReference

Dimensions

Wheelbase

323 cmReference

350 cmReference

Weight

19504 kgReference

34870 to 37246 poundsReference

Gauge

304 to 0 cmReference

—

Front tire

—

710/70R42Reference

Rear tire

—

710/70R42Reference

Ag front

—

710/70R42Reference

Ag rear

—

710/70R42Reference

Length

—

734 cmReference

Clearance (front axle)

—

73 cmReference

Clearance (drawbar)

—

43 cmReference

Shipping

—

15817 kgReference

Operating

—

16894 kgReference

Ballasted

—

18804 kgReference

8RX 310 Serial Number Location

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

330Reference

140Reference

Batteries

2Reference

3Reference

Battery CCA

925Reference

Battery volts

12Reference

Battery Group

31Reference

—

Alternator size

200 ampReference

—

Battery options

12 VReference

—

Total cold cranking amps

1,850 CCAReference

—

John Deere 8RX 310 Tracks

Width

76 cmReference

293 cmReference

General

Make & Model

MJDXL09.0,333Reference

—

SCV control

ElectronicReference

—

Drawbar category

Category 4/Category 4 with heavy-duty supportReference

—

Drawbar Maximum vertical load

2,245.3 kgReference

—

Rear Axle Type

FlangeReference

—

Rear Axle Differential Lock

Full-locking electrohydraulicReference

—

Front Axle Type

1,700 Series MFWDReference

—

Display

Standard: 4,600 Generation 4 CommandCenter™: 25.4 cm\\n10 in.Reference

—

Country of manufacturer

USAReference

—

Working lights

Standard: 18 halogen\\nAvailable: 18 LED\\n22 LEDReference

—

Type of headlight bulb

Standard: halogen, 65 W\\nAvailable: LEDReference

—

Capacities

Capacity

549 cu. in.Reference

117.3 LReference

Diesel exhaust fluid (DEF) tank

37.2 LReference

—

Crankcase oil volume

7 U.S. galReference

—

Fuel

—

1022.0 LReference

Power

Max Power

341 hpReference

—

Rated Power

310 hpReference

—

Power boost

10 percentReference

—

PTO

PTO Power

257 hpReference

—

PTO torque rise

40 percentReference

—

Rear PTO Power

AvailableReference

—

Rear PTO Control

Electrohydraulic with adjustable modulationReference

—

Rear PTO RPM

540/1,000 rpmReference

—

Hydraulics

Pump Rated Output (total)

318 l/minReference

—

Remote Valves

6Reference

—

Number of rear selective control valves (SCVs)

6Reference

—

Rear Hitch category (SAE designation)

Category 4N/3 standard lift at 610 mmReference

—

Rear Hitch Sensing Type

ElectrohydraulicReference

—

Dimensions & weight

Turning radius

6.8 mReference

—

Overall weight

19,640.5 kgReference

—

Tracks Mid Rollers

Front: Two\\nRear: ThreeReference

—

Operator station

Cab Availability

AvailableReference

—

Cab glass area

70.18 sq ftReference

—

Cab space

114 cu ftReference

—

Seat Suspension

Air suspensionReference

—

Steering & brakes

Steering type

Standard: Hydraulic power-steering with electric pump backupReference

—

9420 Serial Numbers

2002

—

1001Reference

2003

—

10001Reference

2004

—

20001Reference

2005

—

30001Reference

2006

—

40001Reference

2007

—

50001Reference

Location:

—

On the top-left of rear hinge memberReference

John Deere 9420 Height

Hood

—

247 cmReference

Cab

—

349 cmReference

Exhaust

—

355 cmReference

Test results

Fuel use

—

76.8 l/hourReference

Max pull

—

17422 kgReference

Speeds

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.