John Deere 4640 Specs & Review

John Deere 4640 Technical Specs
Manufacturer John Deere
Production Years 1978 – 1982
Original Price (1982 Quad-Range ROPS 2WD) $46,316
Original Price (1982 Power Shift Cab 2WD) $53,123
Engine John Deere 7.6L 6-cyl diesel
Transmissions 16-speed partial power shift, 8-speed full power shift
PTO (claimed) 155 hp (115.6 kW)
Drawbar (tested) 132.44 hp (98.8 kW)
PTO (tested) 156.30 hp (116.6 kW)
Drive 4×2 2WD, 4×4 HFWD 4WD
Fuel Capacity 83 gal (314.2 L)
Hydraulic System Capacity 16.5 gal (62.5 L)
Hydraulics Type closed center
Hydraulics Capacity 16.5 gal (62.5 L)
Hydraulics Valves 2 or 3
Hydraulics Pump Flow 23 gpm (87.1 lpm)
Rear Hitch Type III/IIIN
Rear Lift 7328 lbs (3323 kg)
Rear PTO independent
Rear PTO Type 1000 (1.75)
Wheelbase 118.5 inches (300 cm)
Weight 14350 to 15700 pounds
Front Tire 11.00-16
Rear Tire 18.4-38

Where was the John Deere 4640 manufactured?

The John Deere 4640 was built in Waterloo, Iowa, USA.

What was the original price of the John Deere 4640 in 1982?

The original price in 1982 for the Quad-Range ROPS 2WD variant was $46,316, and for the Power Shift Cab 2WD variant, it was $53,123.

What engine does the John Deere 4640 use?

The tractor is powered by a John Deere 7.6L 6-cyl diesel engine.

What are the transmission options for the John Deere 4640?

The John Deere 4640 offers a 16-speed partial power shift and an 8-speed full power shift transmission.

What is the fuel capacity of the John Deere 4640?

The fuel capacity of the tractor is 83 gallons (314.2 L).

How many hydraulic valves does the John Deere 4640 have?

The tractor can have either 2 or 3 hydraulic valves.

What is the wheelbase and weight of the John Deere 4640?

The wheelbase of the tractor is 118.5 inches (300 cm), and its weight ranges from 14350 to 15700 pounds.

Where can I find the serial number of the John Deere 4640?

The serial number plate is located on the rear of the 4640, above the PTO shaft.

How do I read the serial number table for the John Deere 4640?

There’s a specific guide on how to read a serial number table provided by the manufacturer.

What type of electrical system does the John Deere 4640 have?

The tractor uses a negative ground electrical system with an alternator for charging. It has 2 batteries, each with 6 volts.

The John Deere 4640 is a remarkable tractor model manufactured by John Deere. Part of the Iron Horses Series, this Row-Crop tractor was produced between 1978 and 1982.

Key Specifications:

The tractor boasts a powerful John Deere 7.6L 6-cyl diesel engine. It offers transmission options of a 16-speed partial power shift and an 8-speed full power shift. The tractor’s weight ranges between 14350 to 15700 pounds.


With a PTO (claimed) of 155 hp and a tested drawbar power of 132.44 hp, the John Deere 4640 showcases impressive strength and efficiency in various farming tasks.


The tractor comes with a Sound-Gard cab standard, ensuring comfort for the operator. It also features a pedal-actuated hydraulic differential lock and hydrostatic power steering for enhanced control.


John Deere is known for producing reliable machinery, and the 4640 model is no exception. While every machine may have its issues, the 4640’s robust build ensures longevity and durability.

Value for Money:

Given its specifications and the brand’s reputation, the John Deere 4640 offers good value for money, especially when compared to other models in its class.

Pros and Cons:

  • Pros: Powerful engine, multiple transmission options, comfortable cab, reliable performance.
  • Cons: Might be on the pricier side for some, maintenance can be costly.

Best Suited For:

The John Deere 4640 is best suited for row-crop farming. Its features and power make it ideal for varied terrains and demanding agricultural tasks.

In conclusion, the John Deere 4640 stands out as a reliable and powerful tractor. Its combination of performance, features, and the brand’s reputation makes it a worthy investment for those in the farming industry.