John Deere

John Deere 8520

The John Deere 8520 is a row-crop tractor produced from 2002 to 2005 as part of the 8020 Series. It features a powerful 8.1L 6-cylinder turbocharged diesel engine delivering up to 335 hp gross power. The tractor is equipped with a 16-speed full power shift John Deere PowerShift transmission and four-wheel drive with hydrostatic power steering. It offers advanced hydraulics with a closed center pressure-flow compensated system and multiple valve options. The 8520 includes a standard cab, hydraulic wet disc brakes, and a variety of hitch and PTO options. Built in Waterloo, Iowa, USA, it is designed for heavy-duty agricultural tasks with robust capacity and performance.

Power305 hp

Founded2002 - 2005

Model8520

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Technical Specifications

Detailed specifications and technical data for John Deere 8520

Power

Engine (max)	335 hp (249.8 kW)
Engine (net)	295 hp (220.0 kW)
PTO (tested)	292.88 hp (218.4 kW)
PTO (claimed)	255 hp (190.2 kW)
Engine (gross)	305 hp (227.4 kW)
Drawbar (tested)	225.13 hp (167.9 kW)

Tires

Rear	18.4R46

Engine

Type	turbocharged diesel
Idle RPM	900-2300
Cylinders	6-cylinder
Rated RPM	2200
Air cleaner	dry with secondary element
Bore/Stroke	4.56x5.06 inches (116 x 129 mm)
Fuel system	electronic high-pressure common rail (HPCR)
Displacement	496 ci (8.1 L)
Manufacturer	John Deere
Oil capacity	32.7 qts (30.9 L)
Configuration	liquid-cooled inline
Operating RPM	1500-2200
Starter volts	12
Coolant capacity	35.9 qts (34.0 L)
Compression ratio	16.5:1
Rated Power (net)	295 hp (220.0 kW)
Maximum Power (net)	325 hp (242.4 kW)
Oil change interval	250 h
Rated Power (gross)	305 hp (227.4 kW)
Maximum Power (gross)	335 hp (249.8 kW)

Weight

Shipping	23,050 lbs (10455 kg)
Operating	23,800 lbs (480/80R46 duals) (10795 kg)
Max Drawbar	4,900 lbs (2222 kg)
Max Drawbar (with HD support)	10,000 lbs (4536 kg)

Capacity

Fuel	160 gal (605.6 L)
Front hubs	4.2 qts (4.0 L)
Front diff.	14.2 qts (13.4 L)
Hydraulic system	39.6 gal (149.9 L)

Variants

8520	wheeled tractor
8520T	crawler

Dimensions

Length	211.9 inches (538 cm)
Wheelbase	117.7 inches (298 cm)
Front axle	4WD, Independent Link Suspension
Height (cab)	122.2 inches (310 cm)
4WD Front tread	60 to 80 inches (152 to 203 cm)
ILS Front tread	60 to 88 inches (152 to 223 cm)
Rack-and-pinion rear axle	4.724 by 118.5 inches (119 by 3009 mm)

Electrical

Ground	negative
Batteries	2
Battery CCA	925
Battery volts	12
Charging amps	150
Charging system	alternator

Hydraulics

Type	closed center pressure-flow compensated (PFC)
Valves	5
Capacity	39.6 gal (149.9 L)
Pressure	2900 psi (200.0 bar)
SCV flow	30 gpm (113.6 lpm)
Total flow	33.5 gpm (126.8 lpm) With standard 45cc pump
Optional flow	42.5 gpm (160.9 lpm) Optional 57cc pump

Mechanical

Cab	standard
Drive	Four-wheel drive
Brakes	Hydraulic wet disc brakes
Steering	hydrostatic power

Production

Type	Row-Crop tractor
Series	8020 Series
Built in	Waterloo, Iowa, USA
Years produced	2002 - 2005

Transmission

Type	John Deere PowerShift
Gears	16 forward and 4 reverse
Clutch	hydraulic wet disc
Features	Full power shift transmission with single shift lever with display on cab corner post. Tractor begins in 7 (forward) and 2 (reverse) on start up. Clutch pedal may be used to pre-select a gear by holding clutch and pressing lever until desired gear is reached. Automatic PowerShift (APS) allows automated shifting to match load.
Description	full power shift
Oil capacity	158.4 qts (149.9 L)

Tractor hitch