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John Deere 8520T vs John Deere 8850

Verdict: John Deere 8520T vs John Deere 8850

The John Deere 8520T and the John Deere 8850 are both tractors — here is how they stack up on the figures that matter. John Deere 8520T leads on rated power with 305 hp against 304 hp. John Deere 8520T is the lighter machine (25,950 kg vs 37,480 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. John Deere 8520T is the newer design (2002 vs 1982). In short: choose the John Deere 8520T for outright pulling power, or the John Deere 8850 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 8520T Tractor
John Deere
71
Fit score
Best match
Clear
John Deere 8850 Tractor
John Deere
71
Fit score
Best match
Clear
Rated power
305 hp
304 hp
Confidence
98%
98%
Guide price
Overview
Manufacturer
John DeereReference
John DeereReference
Fourth reverse at 1600 RPM.Reference
20.8-38 tiresReference
Drive
crawlerReference
Steering
electro-hydraulic powerReference
Final drives
inboard compound planetaryReference
Differential lock
electro-hydraulic front and rearReference
Variants
8520
wheeled tractorReference
8520T
crawlerReference
Engine
Engine (gross)
227.4 kWReference
Engine (net)
220.0 kWReference
Engine (max)
249.8 kWReference
Drawbar (tested)
163.5 kWReference
201.2 kWReference
Displacement
8.1 LReference
15.7 LReference
Bore/Stroke
116 x 129 mmReference
140 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
Compression
16.5:1Reference
15.5:1Reference
Rated RPM
2200Reference
2100Reference
Idle RPM
900-2300Reference
Operating RPM
1500-2200Reference
Starter volts
12Reference
12Reference
Coolant capacity
34.0 LReference
73.8 LReference
Oil capacity
246.1 LReference
172.2 LReference
Oil change
250 hReference
Max power
163.5 kWReference
201.2 kWReference
Power at rated engine speed
190.9 kWReference
226.7 kWReference
Engine
275.9 kWReference
Power
275.9 kWReference
Transmission
Transmission
John Deere PowerShiftReference
Quad-RangeReference
Gears
16 forward and 4 reverseReference
16 forward and 6 reverseReference
PTO & Hydraulics
PTO (claimed)
190.2 kWReference
223.7 kWReference
PTO (tested)
217.5 kWReference
226.7 kWReference
Hydraulic system
246.0 LReference
172.2 LReference
Type
full power shiftReference
partial power shiftReference
Capacity
246.0 LReference
172.2 LReference
Pressure
200.0 barReference
Valves
5Reference
3 to 4Reference
Pump flow
113.6 lpmReference
166.5 lpmReference
Total flow
160.9 lpmReference
Rear Type
III/IIINReference
4/4NReference
Rear lift
6885 kgReference
4649 kgReference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000 (1-3/4)Reference
1000 (1.75)Reference
Control
lower-link draft sensingReference
Clutch
Perma-Clutch hydraulic wet discsReference
Capacities
Fuel
492.1 LReference
908.4 LReference
Max capacity
14288 kgReference
Dimensions
Wheelbase
304 cmReference
337 cmReference
Weight
25950 to 27280 poundsReference
37480 to 37700 poundsReference
Length
557 cmReference
654 cmReference
Height (cab)
312 cmReference
Clearance (rear axle)
55 cmReference
Clearance (drawbar)
44 cmReference
Shipping
11770 kgReference
Operating
12374 kgReference
Ballasted
14013 kgReference
Front tire
20.8-38Reference
Rear tire
20.8-38Reference
Ag front
30.5L-32Reference
Ag rear
30.5L-32Reference
Shipping weight
17000 kgReference
Operating weight
17100 kgReference
Front axle
110 by 3238 mmReference
Rear axle
110 by 3238 mmReference
8520T Serial Numbers
Location:
Rear of tractorReference
Serial number plate on the rear of the tractor.Reference
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
150Reference
110Reference
Batteries
2Reference
3Reference
Battery CCA
925Reference
625Reference
Battery volts
12Reference
12Reference
John Deere 8520T Tracks
Width
381 cmReference
Length on ground
226 cmReference
Area on ground
3.4 m²Reference
Test results
Fuel use
56.4 l/hourReference
72.7 l/hourReference
Max pull
12682 kgReference
16025 kgReference
Speeds
John Deere 8850 attachments
8850 Serial Numbers
1982
2000Reference
1983
4000Reference
1984
5101Reference
1985
6001Reference
1986
6501Reference
1987
7001Reference
1988
7501Reference

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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