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John Deere 510 vs John Deere 940

Verdict: John Deere 510 vs John Deere 940

The John Deere 510 and the John Deere 940 are both tractors — here is how they stack up on the figures that matter. John Deere 510 leads on rated power with 40 hp against 39 hp. John Deere 510 is the lighter machine (2,060 kg vs 2,269 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 940 is the newer design (1980 vs 1966). In short: choose the John Deere 510 for outright pulling power, or the John Deere 940 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 510 Tractor
John Deere
71
Fit score
Best match
Clear
John Deere 940 Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
40 hp
39 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
With 11-32 rear tires.Reference
liquid-cooledReference
Final drives
planetaryReference
Engine
Fuel tank
70.0 LReference
Engine
29.5 kWReference
32.0 kWReference
Displacement
2.5 LReference
2.9 LReference
Bore/Stroke
98 x 110 mmReference
106 x 110 mmReference
Power
29.5 kWReference
32.0 kWReference
Compression
16.7:1Reference
16.8:1Reference
Rated RPM
2400Reference
2400Reference
Torque
137.0 NmReference
Torque RPM
1300Reference
Starter volts
12Reference
12Reference
Oil capacity
31.0 LReference
7.0 LReference
Coolant capacity
10.9 LReference
10.5 LReference
Operating RPM
1300-2400Reference
Starter power
3.0 kWReference
Transmission
Type
gearReference
two-speed power shiftReference
Gears
10 forward and 3 reverseReference
16 forward and 8 reverseReference
PTO & Hydraulics
Rear Type
II/IReference
II/IReference
Rear PTO
liveReference
independentReference
Rear PTO Type
540/1000 (1.375)Reference
540Reference
Engine RPM
540@2250Reference
1000@2070Reference
PTO (claimed)
29.0 kWReference
Hydraulic system
40.9 LReference
Capacity
40.9 LReference
Pressure
190.0 barReference
Pump flow
23.1 lpmReference
Rear lift
2212 kgReference
Clutch
dry discReference
Front PTO
optionalReference
Front PTO Type
1000Reference
Dimensions
Weight
2060 kgReference
2269 kgReference
Front tire
6.50-16Reference
6.50-16Reference
Rear tire
12.4/11-32Reference
12.4-32Reference
Ag front
6.50-16Reference
7.50-16Reference
Ag rear
14.9/13-28Reference
9.5-36Reference
Length
340 cmReference
350 cmReference
Width
179 cmReference
166 cmReference
Height (steering wheel)
167 cmReference
Ground clearance
44 cmReference
Front tread
124 to 175 cmReference
125 to 201 cmReference
Rear tread
127 to 177 cmReference
135 to 185 cmReference
Wheelbase
188 cmReference
Height (ROPS)
239 cmReference
Height (exhaust)
261 cmReference
Shipping weight
2269 kgReference
Clearance (front axle)
53 cmReference
510 Serial Number Location
Speeds
Capacities
Fuel
78.0 LReference
Electrical
Ground
negativeReference
Charging system
alternatorReference
Charging amps
33Reference
Batteries
2Reference
Battery volts
12Reference

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.

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