John Deere 4640

john deere 4640 3 1

The John Deere 4640 is a 2WD/4WD row-crop tractor from the Iron Horses series. This tractor was manufactured by John Deere in Waterloo, Iowa, USA from 1978 to 1982. The JD 4640 is equipped with a 7.6 L six-cylinder diesel engine and one of two transmissions: partial power shift transmission with 16 forward and 6 reverse gears or full power shift transmission with 8 forward and 4 reverse.

John Deere produced its 4640 farm tractor model with a Sound-Gard cab standard cabin. Talking dimensions and weight, this model weighs 14350 lbs or 6509 kg has 96 inches [243 cm] of width, 171 inches [434 cm] of length and 117 inches [297 cm] of height while maintaining a wheelbase of 118.5 inches [300 cm] and a ground clearance of 14.9 inches [37 cm] the front tread is about 58 to 100 inches while the rear tread is 60 to 131.5 inches. This tractor can fit ag tires of 10.00-16 front and 10.00-16 back. This John Deere 4640 is powerd by a diesel engine it has 466 ci or 7.6 L 6 cylinders the fuel tank capacity is 83 gal or 314.2 L. This machine has 4×2 2WD wheel drive system,8 forward and 4 reverse John Deere PowerShift transmission system.

john deere 4640
john deere 4640

The John Deere 4640 is a large and powerful machine. It’s engine has a max power output of 50 hp. The JD 4640 is built on a choice of chassis. The standard option is a 4X2 2WD chassis, while there is also the option of a 4X4 MFWD 4WD chassis. There are a range of tires that are designed for this tractor. The tractor is quite heavy when operational, with dual tires attached, it weighs in at 7121 kg (15,700 lbs). If max safe ballasted weight is 8430 kg (18,585 lbs). The total length of this tractor comes to 4.34 m (171 inches) and it has a wheelbase of 3 m (118.5 inches).

The John Deere 4640 uses a set of differential hydraulic wet disc brakes to control it’s speed. On the 2WD model, when the brakes are being used it has a minimum turning radius of 4.1 m. The JD 4640 also utilizes a pedal actuated hydraulic differential lock for greater control. The hydraulics system on this tractor is powered by the 155 hp engine. This hydraulics system is closed and holds up to 62.5 liters (16.5 US gallons) of hydraulic fluid. This system powers the rear category 3 hitch. The hitch has a maximum safe lifting capacity of 3323 kg (7328 lbs). The fuel tank on this tractor can hold up to 314.2 liters (83 US gallons) of diesel.

The John Deere 4640 row-crop tractor used the John Deere engine. It is a 7.6 L, 7,636 cm 2 , (466.0 cu·in) six-cylinder diesel engine with 116.0 mm (4.57 in) of the cylinder bore and 121.0 mm (4.76 in) of the piston stroke. This engine produced 157.2 PS (115.6 kW; 155.0 HP) of PTO output power.

john deere 4640
john deere 4640 1

The JD 4640 is equipped with hydrostatic power steering, differential hydraulic wet disc brakes, Sound-Gard cab and 314.2 liters (83 US gal.; 69.1 Imp. gal) fuel tank. This tractor could be equipped with the John Deere 168 loader.


The John Deere 4640 is a four-wheel drive tractor. It has two wheel options, 4×2 and 4×4 with the HFWD option for heavy duty work or tough terrain.

john deere 4640 2WD
john deere 4640 2WD 2


Engine has water in the oil. I Need a maintenance manual.

Powered by diesel, more cylinders is an asset, perfectly matched Rated RPM engine operation, motor turbo, intercooler, 12 V-oltowy starter, 6V, lighting rather typical, very good PTO, none BAS, disk, wet work, heavy tractor, definitely on a large farm, large and long, wide spacing, typical clearance, traditional 2 wheel drive, hydrostatic control, transmission without synchronization, power shift, two clutches inside the transmission and control of electro, advanced transmission, allows you to change under load, typical number of gears forward, racing in the back of very limited.

4640 is a better tractor all around, but it’s only downfall is the lack of a 540 PTO. that was a screw up on their part.

I have both of those tractors with hyd. front wheel drive. 4640 has the same engine but with intercooler and bigger rad. Frame is the same except that it has big weights bolted on each side of the frame above the front axle. That gives the impression that it is a bigger frame. Hood is wider and longer. 4640 rear end is much bigger. Same back end as on the articulates. That means a mandatory 1000rpm PTO. Cab is further back on the 4440. 4640 is a better tractor in my opinion.

Frequently Asked Questions

How much does a John Deere 4640 weight?

The weight of a John Deere 4640 tractor ranges from 13160 to 14950 pounds, depending on the model.

How many horsepower is a 4640 John Deere?

The John Deere 4640 tractor features 185.1 horsepower and 138.0 kilowatts of power.

What years did John Deere make the 4640?

The John Deere 4640 was in production from 1978 to 1982.

What motor is in a John Deere 4640?

John Deere 4640 tractors are powered by a 4 stroke direct injector engine, made by John Deere themselves. It has an output of 185.1 HP at 1400 RPM.

How much oil does a John Deere 4640 hold?

Technically, John Deere specifies the capacity of their tractors in gallons, not liters. The 4640 tractor can hold 20 qts or 18.9 L of oil.

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