John Deere 8640

Last Updated: June 2024

Overview

The John Deere 8640 is a large articulated 4WD tractor that was part of John Deere's Iron Horses series, manufactured between 1979 and 1982 in Waterloo, Iowa. It features a six-cylinder, turbocharged diesel engine with liquid cooling and a displacement of 619 cubic inches, capable of delivering 275 horsepower. The articulated power steering and hydraulic wet disc brakes facilitate the management of this 28,270-pound machine. Its 16-speed partial power shift transmission allows it to reach a forward speed of up to 20.2 mph and a reverse speed of 13.5 mph. The standard cab provides protection and comfort for the operator, while the hydraulic system ensures efficient functionality of implements. The tractor is designed to tackle a variety of tasks on large farms or in industrial agricultural settings.

Key Specifications

Category: Utility, Four-Wheel Drive

Power Output: 275

Transmission: Partial power shift

Drive Type: Four-wheel Drive (4WD)

Operating Weight: 28270

Fuel Type: Diesel

John Deere 8640 vs. Similar Tractors

Power Output

Excellent

Greater than 94% of similar tractors.

Hitch Capacity

Above Average

Greater than 84% of similar tractors.

Operating Weight

Above Average

Greater than 72% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: -
Fuel Type: Diesel
Induction Type: Turbocharged
Cylinders: 6
Displacement (ci): 619
Bore (in): 5.12
Stroke (in): 5
Rated RPM: 2100
Power Output (hp): 275

Transmission

Type: Partial power shift
Forward Gears: 16
Reverse Gears: 6
Total Gears: -

Dimensions

Length (in): 223.5
Width (in): -
Height (in): 126.6
Operating Weight (lb): 28270

Power Take-Off (PTO)

PTO Type: Independent
PTO Speed 1 (rpm): 1000
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x4 articulated 4WD
Drive Type: Four-wheel Drive (4WD)
Steering Type: Articulated power
Coolant Capacity (qts): 48
Front Tire Diameter (in): 34
Front Tire Width (in): 18.4
Rear Tire Diameter (in): 34
Rear Tire Width (in): 18.4
Front/Rear Rim Diameter (in): -
Tire Type: Ag
Manufacture - End Year: 1982
Hitch Type: III/IIIN
Hitch Category: 3
Hitch Position: Rear
Hitch Capacity (lb): 8545
Operator Station Type: Cab
Starter Type: Electric
Brake Type: Hydraulic wet disc
Hydraulic System Type: Closed center