John Deere 4640

Last Updated: June 2024

Overview

The John Deere 4640 is a row-crop tractor that was part of John Deere's Iron Horses series and was manufactured in Waterloo, Iowa, between 1978 and 1982. It features a 7.6 L six-cylinder diesel engine that delivers 155 horsepower at the PTO or a gross power output of 185.1 horsepower. The 4640 model comes with different transmission options including a 16-speed partial power shift or an 8-speed full power shift. Equipped with hydrostatic power steering and hydraulic wet disc brakes, this tractor ensures smooth operation and effective stopping power. Its three-point hitch system is classified as Category III/IIIN, along with an independent PTO rated at 1000 rpm, and a closed-center hydraulic system. The Sound-Gard cab is designed to offer a comfortable and quiet operating environment.

Key Specifications

Category: Row Crop

Power Output: 155.0 (PTO), 185.1 (Gross)

Transmission: Partial power shift

Drive Type: 2WD

Operating Weight: 15700

Fuel Type: Diesel

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John Deere 4640 Tractor

John Deere 4640 vs. Similar Tractors

Hitch Capacity

Average

Greater than 47% of similar tractors.

Operating Weight

Average

Greater than 62% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: John Deere
Cooling Type: Liquid-cooled
Cylinder Orientation: Inline
Valve Configuration: OHV
Fuel Type: Diesel
Induction Type: Turbocharged intercooled
Cylinders: 6
Displacement (ci): 466
Bore (in): 4.5625
Stroke (in): 4.75
Rated RPM: 2200
Power Output (hp): 155.0 (PTO), 185.1 (Gross)

Transmission

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

Dimensions

Length (in): 171
Width (in): 96
Height (in): 117 (cab)
Operating Weight (lb): 15700

Power Take-Off (PTO)

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

Miscellaneous

Chassis: 4x2 2WD
Drive Type: 2WD
Steering Type: Hydrostatic power
Coolant Capacity (qts): 38
Front Tire Diameter (in): 16 (based on 11.00-16 tire specification)
Front Tire Width (in): 11
Rear Tire Diameter (in): 38 (based on 18.4-38 tire specification)
Rear Tire Width (in): 18.4
Front/Rear Rim Diameter (in): -
Tire Type: Ag
Manufacture - End Year: 1982
Hitch Type: Three-Point Hitch
Hitch Category: III/IIIN
Hitch Position: Rear
Hitch Capacity (lb): 7320 lbs
Operator Station Type: Sound-Gard cab
Starter Type: Electric
Brake Type: Differential hydraulic wet disc
Hydraulic System Type: Closed center