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John Deere 8310RT vs John Deere 9420
Verdict: John Deere 8310RT vs John Deere 9420
The John Deere 8310RT 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 8310RT is the newer design (2011 vs 2002). In short: choose the John Deere 9420 for outright pulling power, or the John Deere 8310RT if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
John Deere
71
Fit score
Best match
Clear
John Deere
71
Fit score
Best match
Clear
Rated power
310 hp
312 hp
Confidence
98%
98%
Guide price
—
—
Overview
Manufacturer
John DeereReference
John DeereReference
Speed R3 at 2300 RPM and R4 at 1500 RPM.Reference
With 800/70R38 tires.Reference
Drive
crawlerReference
—
Steering
electro-hydraulic powerReference
hydrostatic articulatedReference
Variants
8310R
wheeled tractorReference
—
8310RT
tracked tractorReference
—
9420T
—
crawler tractorReference
Engine
Engine (gross)
231.2 kWReference
—
Engine (max)
254.3 kWReference
—
Drawbar (tested)
168.6 kWReference
257.3 kWReference
Displacement
9.0 LReference
12.5 LReference
Bore/Stroke
118 x 136 mmReference
127 x 165 mmReference
Emissions
Stage IIIBReference
—
Emission control
exhaust gas recirculation (EGR)Reference
—
Rated Power (gross)
231.2 kWReference
—
Maximum Power (gross)
266.2 kWReference
—
Air cleaner
dual stage with aspirationReference
dryReference
Compression
16:1Reference
17:1Reference
Rated RPM
2100Reference
2100Reference
Starter
electricReference
—
Starter volts
12Reference
12Reference
Oil capacity
25.0 LReference
137.8 LReference
Oil change
500 h (with JD Plus-50 II)Reference
—
Coolant capacity
41.0 LReference
60.6 LReference
Max power
168.6 kWReference
257.3 kWReference
Power at rated engine speed
200.4 kWReference
232.8 kWReference
Engine
—
316.9 kWReference
Power
—
316.9 kWReference
Operating RPM
—
1500-2100Reference
Transmission
Transmission
John Deere AutoPowrReference
John Deere PowershiftReference
Gears
infinite forward and reverseReference
18 forward and 6 reverseReference
PTO & Hydraulics
PTO (claimed)
184.2 kWReference
235.6 kWReference
PTO (tested)
223.3 kWReference
232.8 kWReference
Type
infinitely variable transmission (IVT)Reference
full power shiftReference
Pressure
200.0 barReference
200.0 barReference
Rear valves
3 to 5Reference
—
Pump flow
132.5 lpmReference
113.6 lpmReference
Total flow
227.1 lpmReference
295.2 lpmReference
Rear Type
4N/3Reference
IV/IVNReference
Rear lift (at 24"/610mm)
9072 kgReference
—
Rear PTO
independentReference
independentReference
Rear PTO Type
1000 (1-3/4)Reference
1000Reference
Power at rated PTO speed
217.5 kWReference
256.1 kWReference
Hydraulic system
—
117.3 LReference
Capacity
—
117.3 LReference
Valves
—
4 or 5Reference
Rear lift
—
6552 kgReference
Dimensions
Wheelbase
251 cmReference
350 cmReference
Length
688 cmReference
734 cmReference
Height (cab)
333 cmReference
—
Ballasted weight
17690 kgReference
—
Max weight
19958 kgReference
—
Clearance (drawbar)
39 cmReference
43 cmReference
Weight
—
34870 to 37246 poundsReference
Front tire
—
710/70R42Reference
Rear tire
—
710/70R42Reference
Ag front
—
710/70R42Reference
Ag rear
—
710/70R42Reference
Clearance (front axle)
—
73 cmReference
Shipping
—
15817 kgReference
Operating
—
16894 kgReference
Ballasted
—
18804 kgReference
8310RT Serial Number Location
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
200Reference
140Reference
Batteries
2Reference
3Reference
Battery CCA
925Reference
925Reference
Battery volts
12Reference
12Reference
John Deere 8310RT Tracks
Width
443 cmReference
293 cmReference
Test results
Fuel use
59.8 l/hourReference
76.8 l/hourReference
Max pull
15907 kgReference
17422 kgReference
Speeds
Capacities
Fuel
—
1022.0 LReference
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
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.