John Deere

John Deere 8400

The John Deere 8400 is a row-crop tractor produced from 1995 to 1999 as part of the 8000/8000T Series. It features a turbocharged aftercooled 8.1L 6-cylinder diesel engine delivering up to 252.21 hp (tested PTO). The tractor includes a 16-speed full power shift John Deere PowerShift transmission, four-wheel drive, and advanced hydraulics with a closed center pressure-flow compensated system. It offers a CommandView cab with optional Row-Trak guidance and is built in Waterloo, Iowa, USA. The 8400 is designed for heavy-duty farming tasks with a robust hitch, multiple PTO options, and substantial fuel and hydraulic capacities.

Power250 hp[P]

Founded1995 - 1999

Model8400

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Technical Specifications

Detailed specifications and technical data for John Deere 8400

Power

PTO (tested)	252.21 hp (188.1 kW)
PTO (claimed)	225 hp (167.8 kW)
Drawbar (tested)	202.28 hp (150.8 kW)

Engine

Cooling	liquid-cooled inline
Cylinders	6-cylinder 12-valve
Rated RPM	2200
Bore/Stroke	4.56x5.06 inches (116 x 129 mm)
Displacement	496 ci (8.1 L)
Oil capacity	29.6 qts (28.0 L)
Engine detail	John Deere turbocharged aftercooled diesel
Starter volts	12
Coolant capacity	30 qts (28.4 L)
Compression ratio	15.1:1

Weight

Shipping	18709 lbs (8486 kg)
Ballasted	29562 lbs (13409 kg)
Operating	19190 lbs (8704 kg)

Capacity

Fuel	135 gal (511.0 L)
Front hubs	3.2 qts (each) (3.0 L)
Front diff.	11.5 qts (10.9 L)
Hydraulic system	37 gal (140.0 L)

Electrical

Ground	negative
Batteries	2
Battery CCA	925
Battery volts	12
Charging amps	140
Charging system	alternator

Hydraulics

Type	closed center pressure-flow compensated (PFC)
Valves	3 to 5
Capacity	37 gal (140.0 L)
Pressure	2900 psi (200.0 bar)
SCV flow	30 gpm (113.6 lpm)

Mechanical

Cab	CommandView Cab standard. Row-Trak guidance optional.
Drive	Four-wheel drive
Brakes	Differential hydraulic wet disc brakes
Final drives	inboard planetary
Power steering	Yes
Differential lock	electro-hydraulic

Production

Type	Row-Crop tractor
Series	8000/8000T Series
Built in	Waterloo, Iowa, USA
Years produced	1995 - 1999

Transmission

Type	full power shift
Gears	16 forward and 4 reverse
Clutch	hydraulic wet disc
Oil capacity	148 qts (140.1 L)
Transmission	John Deere PowerShift

Tractor hitch

Control	electro-hydraulic draft sensing
Rear Type	III/IIIN
Rear lift	11700 lbs (5307 kg)
Optional rear lift	15650 lbs (7098 kg)

Serial Numbers

1995	1001
1996	6001
1997	10001
1998	20001
1999	24001
Serial number location	Serial number plate on the rear of the tractor, above the PTO shaft.

Dimensions & Tires

Length	206.5 inches (524 cm)
Wheelbase	116.1 inches (294 cm)
Front tread	60 to 88 inches (152 to 223 cm)
Height (cab)	120.2 inches (305 cm)
Standard tires (ag)	Front: 14.9R34. Rear: 18.4R46
Clearance (front axle)	23.2 inches (58 cm)
Rack and pinion rear axle	4.331 by 118.5 inches (110 by 3009 mm)