Choose from more than 400 parts for the John Deere 3640 from the 40 series. Lighting, electrics and trailer couplings are listed by group.
A John Deere 3640 that has been on the farm for years tends to need the same jobs again and again: a seat that has given up, a universal joint that knocks, a lift housing that weeps oil. This page gathers more than 400 John Deere 3640 parts from brands including GRAMMER, LUK, MAHLE, HELLA and GRANIT.
Tractor seats, among them air suspended models, make a real difference over a long day. When fitting a new seat, check the mounting points underneath against the console in the cab, and on an air seat make sure the supply connection matches.
Universal joints, including versions with centralised lubrication, keep the driveline turning. Grease a universal joint until fresh grease appears at all four bearing caps. If one cap stays dry, move the shaft slightly and try again. A cap that still will not take grease means that bearing is finished.
For the linkage there is a lift housing gasket, along with bushes, springs and sealing rings. On the brakes you will find O-rings for the master cylinder. After work on the master cylinder, renew the fluid and bleed carefully so both pedals bite evenly.
Thermostats, seals for the feed pump and a stop cable cover the engine. If the engine starts fine but will not shut down cleanly, a stiff or stretched stop cable is a likely cause. Starter motors and alternators handle starting and charging, and relays, such as changeover relays, take care of switching. Hose sold by the metre lets you replace a split line to length yourself. A drawbar ball for the rear completes the picture.
The rating plate confirms the type. On the old part, look for a reference number stamped into the starter or alternator housing or printed on the edge of a gasket. For a universal joint, measure the cap and the width across the caps so you know the new one suits your yoke.
The 3640 belongs to the John Deere 40 series. These types from the series also have their own pages: the John Deere 1640, John Deere 2040S, John Deere 4040, John Deere 4240 and John Deere 4440. Order for the type you are working on. Every other model from the make is on the John Deere parts page.
