John Deere 8440

The John Deere 8440 is a tractor produced by John Deere. It is equipped with a 466 ci 7.6 L engine. The rated power output is 215 hp 160.3 kW. Transmission: John Deere Quad-Range. Operating weight: 26,590 lbs 12061 kg.

Overview

	1979 - 1982 Iron Horses SeriesFour-wheel Drive (4WD) tractor
1979 - 1982
Iron Horses Series
Four-wheel Drive (4WD) tractor

Production
Manufacturer	John Deere
Four-wheel Drive (4WD) tractor
Built in Waterloo, Iowa, USA
Original price was $64,000 in 1982

John Deere 8440 Engine
John Deere 7.6L 6-cyl diesel
Engine details ...

John Deere 8440 Transmission
16-speed partial power shift
Transmission details ...

John Deere 8440 Power
Engine	215 hp 160.3 kW
PTO (claimed)	175 hp 130.5 kW
Drawbar (tested)	160.58 hp 119.7 kW
PTO (tested)	179.83 hp 134.1 kW
Performance test details ...

Mechanical
Four-wheel drive
Differential lock	hydraulic front and rear
Articulated power steering
Hydraulic wet disc brakes
Cab standard.

Capacity
Fuel	156 gal 590.5 L
Hydraulic system	40 gal 151.4 L

Hydraulics
Type	closed center
Capacity	40 gal 151.4 L
Valves	2
Pump flow	33 gpm 124.9 lpm

Tractor hitch
Rear Type	III
Rear lift	8545 lbs 3876 kg

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000

Dimensions & Tires
Wheelbase	125 inches 317 cm
Weight	26,590 lbs 12061 kg
Front tire	18.4-34
Rear tire	18.4-34
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	90
Batteries	2
Battery CCA	850
Battery volts	6

References
Explore Discover Deere '79 published in 1979, by John Deere
Move up to John Deere... published in 1981

Engine

Engine Detail — 466 ci / 7.6 L Diesel

Manufacturer	John Deere
Configuration	turbocharged diesel, 6-cylinder, liquid-cooled
Displacement	466 ci 7.6 L
Bore/Stroke	4.5625x4.75 inches 116 x 121 mm
Power	215 hp 160.3 kW
Compression	15.5:1
Rated RPM	2100
Idle RPM	800-2300
Operating RPM	1500-2100
Firing order	1-5-3-6-2-4
Starter volts	12
Oil capacity	22 qts 20.8 L
Coolant capacity	40 qts 37.9 L

Transmission

Transmission — John Deere Quad-Range

Transmission	John Deere Quad-Range
Type	partial power shift
Gears	16 forward and 6 reverse
Clutch	hydraulic wet disc
Oil capacity	160 qts 151.4 L
Four gears (1-4) in four ranges (A-D). Tractor must be stopped to select range. Power shift between gears 1-2 and 3-4 within range.
With 18.4-38 tires.

Dimensions

John Deere 8440 Tires
Ag front	18.4-34
Ag rear	18.4-34

Dimensions
Wheelbase	125 inches 317 cm
Length	223.5 inches 567 cm
Operating weight	26,590 lbs*With 20.8-38 duals. 12061 kg
Ground clearance	19.4 inches 49 cm
Front axle	Rack-and-pinion: 3.937 by 95.8 inches 99 by 2433 mm
Front axle	Rack-and-pinion: 3.937 by 118.4 inches 99 by 3007 mm
Rack-and-pinion rear axle	3.937 by 95.8 inches 99 by 2433 mm
Rack-and-pinion rear axle	3.937 by 118.4 inches 99 by 3007 mm
Front tread	63 to 130 inches 160 to 330 cm
Rear tread	63 to 130 inches 160 to 330 cm

John Deere 8440 Height
Hood	87.1 inches 221 cm
Cab	126.6 inches 321 cm
Exhaust	134.5 inches 341 cm

Tests

Nebraska Tractor Test 1323
Diesel 16-speed 4WD September 10, 1979 - September 15, 1949 Link: Nebraska Tractor Test 1323 file
PTO performance
Power at rated engine speed	179.83 hp 134.1 kW
Fuel use	11.3 gal/hour 42.8 l/hour
Drawbar performance
Max power	160.58 hp 119.7 kW
Fuel use	11.2 gal/hour 42.4 l/hour
Max pull	25,383 lbs 11513 kg