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John Deere 7520 vs John Deere 8430

Verdict: John Deere 7520 vs John Deere 8430

The John Deere 7520 and the John Deere 8430 are both tractors — here is how they stack up on the figures that matter. John Deere 8430 leads on rated power with 178 hp against 176 hp. John Deere 7520 is the lighter machine (16,790 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 8430 holds more fuel (590.5 L vs 249.8 L) for longer stints between fills. John Deere 8430 is the newer design (1975 vs 1972). In short: choose the John Deere 8430 for outright pulling power, or the John Deere 7520 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 7520 Tractor
John Deere
94
Fit score
Best match
Clear
John Deere 8430 Tractor
John Deere
94
Fit score
Best match
Clear
Rated power
176 hp
178 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
Eight-speed Deere Synchro-Range transmission with added high and low gears.Reference
With 18.4x34 tires.Reference
Total built
4,661Reference
Steering
hydrostatic powerReference
hydrostatic powerReference
Engine
Drawbar (claimed)
119.3 kWReference
Drawbar (tested)
119.7 kWReference
116.0 kWReference
Displacement
8.7 LReference
7.6 LReference
Bore/Stroke
121 x 127 mmReference
116 x 121 mmReference
Fuel system
direct injectionReference
Air cleaner
aspirator and dual paper elementsReference
dual paper elementsReference
Compression
15.4:1Reference
15.5:1Reference
Rated RPM
2100Reference
2100Reference
Operating RPM
1500-2100Reference
1500-2100Reference
Firing order
1-5-3-6-2-4Reference
1-5-3-6-2-4Reference
Starter volts
12Reference
12Reference
Oil capacity
71.9 LReference
Coolant capacity
37.9 LReference
Intake valve clearance
0.457 mmReference
Exhaust valve clearance
0.711 mmReference
Power at rated engine speed
131.1 kWReference
132.9 kWReference
Max power
119.7 kWReference
116.0 kWReference
Fuel Type
DieselReference
No of Cylinders
6 cylinderReference
Rated engine speed
2,100 RPMReference
Engine torque at rated speed
205.9 kgReference
Bore and stroke
4.19x5.00 inchesReference
Cooling system
liquid-cooledReference
Idle RPM
800-2300Reference
Transmission
Transmission
Syncro-Range Hi-LoReference
Quad-RangeReference
Gears
16 forward and 4 reverseReference
16 forward and 4 reverseReference
forward and reverse options
partial power shift 16F and 16R| AutoQuad 24F and 24RReference
Clutch
electro-hydraulicReference
hydraulic wet discReference
PTO & Hydraulics
PTO (claimed)
130.5 kWReference
130.5 kWReference
PTO (tested)
131.1 kWReference
132.9 kWReference
Hydraulic system
71.9 LReference
Type
partially synchronizedReference
partial power shiftReference
Capacity
71.9 LReference
Pressure
155.1 barReference
Pump flow
79.5 lpmReference
Rear PTO
transmissionReference
independentReference
Rear PTO Type
1000Reference
1000Reference
Rear Type
IIIReference
Engine RPM
1000@2100Reference
Capacities
Fuel
590.5 LReference
Fuel tank
249.8 LReference
590.5 LReference
Crankcase oil volume
22.2 qtsReference
Dimensions
Wheelbase
304 cmReference
317 cmReference
Weight
16790 to 22320 poundsReference
22010 to 22810 poundsReference
Front tire
18.4-34Reference
18.4-34Reference
Rear tire
18.4-34Reference
18.4-34Reference
Ag front
23.1-30Reference
18.4-34Reference
Ag rear
23.1-30Reference
18.4-34Reference
Length
558 cmReference
567 cmReference
Width
243 cmReference
300 cmReference
Height (cab)
332 cmReference
Shipping weight
7615 kgReference
Operating weight
10124 kgReference
Height (exhaust)
341 cmReference
Ground clearance
49 cmReference
Front axle
91 by 2997 mmReference
Rear axle
91 by 2997 mmReference
Front tread
152 to 340 cmReference
Rear tread
152 to 340 cmReference
Shipping
9983 kgReference
Operating
10346 kgReference
Ballasted
10478 kgReference
7520 Serial Number Location
7520 Serial Numbers
1972
1000Reference
1973
1615Reference
1974
3054Reference
1975
4999Reference
1000Reference
Final
5705Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
72Reference
Charging volts
12Reference
Batteries
2Reference
2Reference
Battery volts
6Reference
6Reference
Battery AH
204Reference
Total cold cranking amps
850 AReference
Battery CCA
850Reference
Test results
Fuel use
44.3 l/hourReference
43.9 l/hourReference
Max pull
10213 kgReference
10207 kgReference
General
Make & Model
John DeereReference
Country of manufacturer
USAReference
PTO
Rear PTO Power
AvailableReference
Rear PTO RPM
540/1,000 RPMReference
Front PTO Power
AvailableReference
Steering & brakes
Brakes
Integral hydraulic wet disc brakesReference
Steering type
hydrostatic powerReference
Hydraulics
Hydraulics Type
closed-center PFCReference
Maximum operating pressure
2,250 psiReference
Remote Valves
4Reference
Rear Hitch category (SAE designation)
Category II/IIINReference
Rear Hitch maximum lift capacity
3,946.3 kgReference
Dimensions & weight
Overall Height
289.8 cmReference
Overall Length
516.4 cmReference
Overall Width
243.8 cmReference
Front axle clearance
52.1 cmReference
Rear Axle Width
166.4 cmReference
Wheels & tyres
Rear Wheel Type
18.4R38Reference
Front Wheel Type
14.9R28Reference
Front Wheel tread range
59.5 to 87.5 inches (2WD) | 59.4 to 83.4 inches (4WD)Reference
Operator station
Cab Availability
AvailableReference
8430 Serial Numbers
1976
1690Reference
1977
3962Reference
1978
5323Reference
Location:
On the tractor transmission case, rear.Reference
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.

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