Looking after a Case IH 433, also known as the IHC 433? Here are more than 400 matching parts, including vintage tractor parts, lighting and trailer couplings.
Many owners still call it the IHC 433, and that is the name found on a good number of its parts. Keeping one working means dealing with gaskets that have gone hard, a clutch that starts to slip and steering ball joints with play. There are more than 400 Case IH 433 parts on this page, from GRANIT, HELLA, Scharmüller, LUK and FEBI.
The clutch side covers double clutches, clutch plates and thrust bearings. A double clutch works both the travel clutch and the PTO, so slipping and a PTO that will not disengage can share the same cause. Replace clutch, plate and thrust bearing together while the tractor is split anyway, and inspect the flywheel for scoring and blue heat spots. A new plate on a damaged flywheel soon starts to judder.
Around the engine there are gaskets, for example for the camshaft, O-rings, fuel pump seals and crankshaft seals. Before a new seal goes onto the crankshaft, look at the running surface. If the old lip has worn a track, press the new seal in slightly deeper or use a repair sleeve so the lip runs on clean metal.
For the steering there are ball joints, for the gearbox gear balls, and for the shift rod sealing rings. Replace ball joints left and right at the same time and reset the toe-in afterwards. On an older tractor the taper can be seized solid in the arm. Use a ball joint puller rather than a hammer so the steering arm is not damaged.
Lighting is often the first thing on a 433 that needs attention before it goes back on the road. There are headlights, separate lenses for the tail and indicator light on the fender, and indicator and position lights that come as a pair. Rear fenders are part of the range too. A cracked lens on a tail light lets water in, and then the holder and contacts corrode, so swap the lens early.
Check the type plate to confirm it is a 433. Many parts name a McCormick or IHC number range that includes the 433, and the old part often still shows a reference number. Copy it, because on a tractor that has been repaired many times you cannot be sure the part fitted was meant for this model.
If you also run a Case IH 640 or Case IH 740, their parts are on a page of their own. For the whole make, go to Case IH parts.