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John Deere 8520 vs John Deere 8770

Verdict: John Deere 8520 vs John Deere 8770

The John Deere 8520 and the John Deere 8770 are both tractors — here is how they stack up on the figures that matter. John Deere 8520 leads on rated power with 305 hp against 300 hp. John Deere 8520 is the lighter machine (23,050 kg vs 31,438 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 8520 is the newer design (2002 vs 1993). In short: choose the John Deere 8520 for outright pulling power, or the John Deere 8770 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 8520 Tractor
John Deere
71
Fit score
Best match
Clear
John Deere 8770 Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
305 hp
300 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
With 18.4R46 rear tires.Reference
Six gears (1-6) in four ranges (A-D). Power shift between gear pairs 1/2, 3/4, and 5/6. Synchronized shifting between other gears and ranges.Reference
Steering
hydrostatic powerReference
hydrostatic powerReference
Original price
$114,945Reference
Final drives
inboard planetaryReference
Variants
8520
wheeled tractorReference
8520T
crawlerReference
Engine
Engine (gross)
227.4 kWReference
223.7 kWReference
Engine (net)
220.0 kWReference
Engine (max)
249.8 kWReference
Drawbar (tested)
167.9 kWReference
180.8 kWReference
Displacement
8.1 LReference
10.1 LReference
Bore/Stroke
116 x 129 mmReference
130 x 127 mmReference
Rated Power (net)
220.0 kWReference
Rated Power (gross)
227.4 kWReference
Maximum Power (net)
242.4 kWReference
Maximum Power (gross)
249.8 kWReference
Fuel system
electronic high-pressure common rail (HPCR)Reference
Air cleaner
dry with secondary elementReference
dual paper elements with aspiratorReference
Compression
16.5:1Reference
15.75:1Reference
Rated RPM
2200Reference
2100Reference
Idle RPM
900-2300Reference
Operating RPM
1500-2200Reference
Starter volts
12Reference
12Reference
Coolant capacity
34.0 LReference
54.9 LReference
Oil capacity
149.9 LReference
32.0 LReference
Oil change
250 hReference
Max power
167.9 kWReference
180.8 kWReference
Power at rated engine speed
191.3 kWReference
193.4 kWReference
Power (gross)
223.7 kWReference
Transmission
Transmission
John Deere PowerShiftReference
Power ShiftReference
Gears
16 forward and 4 reverseReference
12 forward and 2 reverseReference
PTO & Hydraulics
PTO (claimed)
190.2 kWReference
190.9 kWReference
PTO (tested)
218.4 kWReference
193.4 kWReference
Hydraulic system
149.9 LReference
143.8 LReference
Type
full power shiftReference
full power shiftReference
Capacity
149.9 LReference
143.8 LReference
Pressure
200.0 barReference
174.4 barReference
Valves
5Reference
SCV flow
113.6 lpmReference
126.0 lpmReference
Total flow
160.9 lpmReference
Rear Type
III/IIINReference
3 (optional)Reference
Rear lift
7847 kgReference
6794 kgReference
Front Hitch
IIINReference
Front lift
4989 kgReference
Rear PTO
independentReference
independentReference
Clutch
hydraulic wet discReference
hydraulic wet discReference
Rear PTO Type
1000 (1.75)Reference
1000 (1.75)Reference
Engine RPM
1000@2200Reference
Rear valves
3 to 5Reference
Pump flow
169.6 lpmReference
Control
draft sensingReference
Power at rated PTO speed
213.5 kWReference
Capacities
Fuel
605.6 LReference
832.7 LReference
Front hubs
4.0 LReference
Front diff.
13.4 LReference
Dimensions
Wheelbase
298 cmReference
340 cmReference
Weight
23050 to 23800 poundsReference
14950 kgReference
Rear tire
18.4R46Reference
24.5R-32Reference
Ag rear
18.4R46Reference
18.4R-46Reference
Length
538 cmReference
683 cmReference
Height (cab)
310 cmReference
Front axle
Independent Link SuspensionReference
99 by 3048 mmReference
Rack-and-pinion rear axle
119 by 3009 mmReference
4WD Front tread
152 to 203 cmReference
ILS Front tread
152 to 223 cmReference
Shipping
10455 kgReference
Operating
10795 kgReference
Max Drawbar
4536 kgReference
Front tire
24.5R-32Reference
Ag front
18.4R-46Reference
Shipping weight
14260 kgReference
Rear axle
99 by 3048 mmReference
8520 Serial Numbers
2002
1001Reference
2003
10001Reference
2004
20001Reference
2005
30001Reference
Location:
Rear of tractor.Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
Charging amps
150Reference
Batteries
2Reference
2Reference
Battery CCA
925Reference
925Reference
Battery volts
12Reference
12Reference
Test results
Fuel use
56.4 l/hourReference
59.8 l/hourReference
Max pull
16153 kgReference
15179 kgReference
Speeds
8770 Serial Number Location
8770 Serial Numbers
1993
1001Reference
1994
1771Reference
1995
2795Reference
1996
4001Reference

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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