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John Deere 8430 vs John Deere 8440

Verdict: John Deere 8430 vs John Deere 8440

The John Deere 8430 and the John Deere 8440 are both tractors — here is how they stack up on the figures that matter. John Deere 8440 leads on rated power with 180 hp against 178 hp. John Deere 8440 is the lighter machine (12,061 kg vs 22,010 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 8440 is the newer design (1979 vs 1975). In short: choose the John Deere 8440 for outright pulling power, or the John Deere 8430 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 8430 Tractor
John Deere
94
Fit score
Best match
Clear
John Deere 8440 Tractor
John Deere
94
Fit score
Best match
Clear
Rated power
178 hp
180 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
With 18.4x34 tires.Reference
With 18.4-38 tires.Reference
Steering
hydrostatic powerReference
Differential lock
hydraulic front and rearReference
Engine
Fuel tank
590.5 LReference
Drawbar (tested)
116.0 kWReference
119.7 kWReference
Displacement
7.6 LReference
7.6 LReference
Bore/Stroke
116 x 121 mmReference
116 x 121 mmReference
Air cleaner
dual paper elementsReference
Compression
15.5:1Reference
15.5:1Reference
Rated RPM
2100Reference
2100Reference
Idle RPM
800-2300Reference
800-2300Reference
Operating RPM
1500-2100Reference
1500-2100Reference
Firing order
1-5-3-6-2-4Reference
1-5-3-6-2-4Reference
Starter volts
12Reference
12Reference
Power at rated engine speed
132.9 kWReference
134.1 kWReference
Max power
116.0 kWReference
119.7 kWReference
Engine
160.3 kWReference
Power
160.3 kWReference
Oil capacity
151.4 LReference
Coolant capacity
37.9 LReference
Transmission
Transmission
Quad-RangeReference
John Deere Quad-RangeReference
Gears
16 forward and 4 reverseReference
16 forward and 6 reverseReference
Clutch
hydraulic wet discReference
hydraulic wet discReference
PTO & Hydraulics
PTO (claimed)
130.5 kWReference
130.5 kWReference
PTO (tested)
132.9 kWReference
134.1 kWReference
Type
partial power shiftReference
partial power shiftReference
Rear Type
IIIReference
IIIReference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000Reference
1000Reference
Engine RPM
1000@2100Reference
Hydraulic system
151.4 LReference
Capacity
151.4 LReference
Valves
2Reference
Pump flow
124.9 lpmReference
Rear lift
3876 kgReference
Dimensions
Wheelbase
317 cmReference
317 cmReference
Weight
22010 to 22810 poundsReference
12061 kgReference
Front tire
18.4-34Reference
18.4-34Reference
Rear tire
18.4-34Reference
18.4-34Reference
Ag front
18.4-34Reference
18.4-34Reference
Ag rear
18.4-34Reference
18.4-34Reference
Length
567 cmReference
567 cmReference
Width
300 cmReference
Height (exhaust)
341 cmReference
Ground clearance
49 cmReference
49 cmReference
Front axle
91 by 2997 mmReference
99 by 3007 mmReference
Rear axle
91 by 2997 mmReference
Front tread
152 to 340 cmReference
160 to 330 cmReference
Rear tread
152 to 340 cmReference
160 to 330 cmReference
Shipping
9983 kgReference
Operating
10346 kgReference
Ballasted
10478 kgReference
Operating weight
12061 kgReference
Rack-and-pinion rear axle
99 by 3007 mmReference
8430 Serial Numbers
1975
1000Reference
1976
1690Reference
1977
3962Reference
1978
5323Reference
Location:
On the tractor transmission case, rear.Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Batteries
2Reference
2Reference
Battery CCA
850Reference
850Reference
Battery volts
6Reference
6Reference
Charging amps
90Reference
Test results
Fuel use
43.9 l/hourReference
42.4 l/hourReference
Max pull
10207 kgReference
11513 kgReference
Speeds
Capacities
Fuel
590.5 LReference
8440 Serial Number Location
8440 Serial Numbers
1979
1000Reference
1980
2266Reference
1981
3758Reference
1982
5235Reference
John Deere 8440 Height
Hood
221 cmReference
Cab
321 cmReference
Exhaust
341 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.

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