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John Deere 8440

John Deere 8440 tractor
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The John Deere 8440 is a four-wheel drive (4WD) tractor produced from 1979 to 1982 as part of the Iron Horses Series. It was built in Waterloo, Iowa, USA, and originally priced at $64,000 in 1982. It features a John Deere 7.6L 6-cylinder turbocharged diesel engine producing 215 hp, paired with a 16-speed partial power shift John Deere Quad-Range transmission. The tractor includes hydraulic wet disc brakes, articulated power steering, and a standard cab. It has a fuel capacity of 156 gallons and a hydraulic system capacity of 40 gallons. The rear hitch is category III with a lift capacity of 8545 lbs. The tractor weighs 26,590 lbs with 20.8-38 dual tires and has a wheelbase of 125 inches. Electrical system includes a 12-volt starter, alternator charging system with 90 amps, and two 6-volt batteries. The 8440 was succeeded by the John Deere 8450 and is related to the 8640 model.
John Deere 8440tractorspecificationsenginetransmission4WDfarm tractor
Power215 hp
Founded1979 - 1982
Model8440

Technical Specifications

Detailed specifications and technical data for John Deere 8440

Power

Engine:215 hp (160.3 kW)
PTO (tested):179.83 hp (134.1 kW)
PTO (claimed):175 hp (130.5 kW)
Drawbar (tested):160.58 hp (119.7 kW)

Tires

Ag rear:18.4-34
Ag front:18.4-34

Engine

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

Height

Cab:126.6 inches (321 cm)
Hood:87.1 inches (221 cm)
Exhaust:134.5 inches (341 cm)

Capacity

Fuel:156 gal (590.5 L)
Hydraulic system:40 gal (151.4 L)

Dimensions

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

Electrical

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

Hydraulics

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

Mechanical

Cab:standard
Drive:Four-wheel drive
Brakes:Hydraulic wet disc brakes
Steering:Articulated power steering
Differential lock:hydraulic front and rear

Production

Type:Four-wheel Drive (4WD) tractor
Series:Iron Horses Series
Built in:Waterloo, Iowa, USA
Original price:$64,000 in 1982
Years produced:1979 - 1982

Transmission

Type:partial power shift
Gears:16 forward and 6 reverse
Notes: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.
Clutch:hydraulic wet disc
Oil capacity:160 qts (151.4 L)
Transmission:John Deere Quad-Range

Tractor hitch

Rear Type:III
Rear lift:8545 lbs (3876 kg)

Serial Numbers

1979:1000
1980:2266
1981:3758
1982:5235

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:1000

Related Models

John Deere 8450

Model:8450

John Deere 8640

Model:8640