Model Overview

Which model and series does this tractor belong to and when was it produced?

• Model: John Deere 4640
• Series: 4040 Series
• Production Years: 1977 to 1984
• Type: Row-Crop tractor
• Manufacturer: John Deere

Horsepower

What is the horsepower of the John Deere 4640?

• Engine (gross): 185.1 hp (138.0 kW)
• Engine (net): 174.3 hp (130.0 kW)
• PTO (claimed): 155.6 hp (116.0 kW)

Engine

What are the engine specifications?

• Engine Model: John Deere 7.6L 6-cyl diesel
• Fuel Tank Capacity: 83 gal (314.2 L)

Mechanical

What are the mechanical features of the John Deere 4640?

• Chassis: 4x2 2WD, 4x4 HFWD 4WD, 4x4 MFWD 4WD
• Final Drives: Planetary
• Differential Lock: Hydro-mechanical
• Steering: Power
• Brakes: Hydraulic wet disc
• Cab: Cab standard
• Transmission Options: 16-speed partial power shift, 8-speed full power shift

Hydraulics

What type of hydraulics system does the tractor use?

• Type: Closed center

Tractor Hitch

What are the specifications for the tractor hitch?

• Rear Type: III
• Control: Position and draft control

Power Take-off (PTO)

What are the PTO specifications?

• Rear PTO: Independent
• Clutch: Hydraulic wet disc
• Rear RPM: 1000 (1.75)

Dimensions & Tires

What are the dimensions and tire sizes?

• Wheelbase: 118.5 inches (300 cm)
• Weight: 14350 lbs (6509 kg)
• Front Tire: 11.00-16
• Rear Tire: 20.8-38

Electrical

What are the electrical system specifications?

• Ground: Negative
• Charging System: Alternator
• Charging Amps: 88
• Batteries: 2
• Battery Volts: 12
• Battery AH: 88