John Deere 8440

John Deere 8440 Four-wheel Drive (4WD) tractor Technical Specifications

John Deere 8440 is a Row-Crop tractor that was produced by the John Deere between 1979 – 1982.

Below you will find detailed technical specifications for John Deere 8440 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

John Deere 8440 Production

Manufacturer: John Deere
Type: Four-wheel Drive (4WD) tractor
Factory: Waterloo, Iowa, USA
Original price: $64,000 (1982 )

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

John Deere 8440 Electrical

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

John Deere 8440 Mechanical

Chassis: 4×4 articulated 4WD
Differential lock: hydraulic front and rear
Steering: articulated power
Brakes: hydraulic wet disc
Cab: Cab standard.
Transmission: 16-speed partial power shift


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


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

Tracktor Hitch

Rear Type: III
Rear lift: 8545 lbs
3876 kg

Power Take-off (PTO)

Rear PTO: independent
Rear RPM: 1000

Title serial numbers

Location: Serial number plate on the rear of transmission case.

photo of 8440 serial number

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

how to read serial numbers…

What year is my John Deere 8440? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

John Deere 8440 Engine detail

Engine Detail
John Deere
turbocharged diesel
Displacement: 466 ci
7.6 L
Bore/Stroke: 4.5625×4.75 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

John Deere 8440 Transmission overview

Engine Oil

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.

John Deere 8440 Dimensions

Wheelbase: 125 inches
317 cm
Length: 223.5 inches
567 cm
Operating weight: 26,590 lbs
12061 kg *With 20.8-38 duals.
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
Rear axle: Rack-and-pinion: 3.937 by 95.8 inches
99 by 2433 mm
Rear axle: Rack-and-pinion: 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

John Deere 8440 Tests

Nebraska Tractor Test 1323

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


Is John Deere 8440 a good tractor?

The John Deere 8440 is one of the great tractors in the John Deere stable, and it has earned John Deere a fantastic reputation.

How much oil does a John Deere 8440 take?

Check out the John Deere 8440 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year John Deere made the 8440?

The John Deere 8440 was an agricultural tractor model made from 1979 – 1982

Where is the serial number on a John Deere 8440?

Lookup serial number plate on the rear of transmission case.

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