The John Deere 8440 tractor is part of the range of tractors that includes the John Deere 8640 tractor. The JD 8440 has a 6 cylinder diesel engine powering it. This engine has been designed and manufactured by the team at JD and is turbocharged. The engine is very large and has a displacement of 7.6 liters. The liquid cooling system requires 37.9 liters of water to fully fill it. Power from the engine is directed to the 4 wheels through a gearbox that gives the tractor a total of 16 speeds going forwards and 6 when it’s reversing.

The John Deere 8440 tractor was built specifically as a pulling machine. This is why the chassis is an articulated 4X4 4WD one. The engine powers the hydraulic system on the JD 8440. This hydraulics system is closed and has a capacity to hold up to 132.5 liters (35 US gallons) of hydraulic fluid. The valve flow rate for the transmission comes to 124.9 liters per minute (33 US gallons per minute). The hydraulic system gives the rear hitch a maximum lifting capacity of 3876 kg (8545 lbs). The rear hitch is a category 3 model.

The total weight of the John Deere 8440 comes to 9797 kg (21,600 lbs), which is far heavier than pretty much any utility tractor, but for a pulling tractor, it’s fairly reasonable. All four tires on the tractor are exactly the same size. They each measure 18.4-34 (18.4 inch width, 34 inch rim diameter). Dual wheels can be added to give the machine extra grip when working with very heavy loads. The wheelbase of the JD 8440 is massive, measuring 3.17 m (125 inches). This tractor comes with a cab as standard which means that it’s suitable for practically any conditions. Don’t forget to leave a review below if you have used this tractor.

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