Oil Filter Housing Gasket Set for BMW N52, N54, N55, N20, S55

This set contains both the oil filter housing gasket and oil cooler gasket to repair the common leak associated with BMW N5x engines, as well as the N20 and S55 engines.

Oil filter housing gasket leaks are a major issue on BMW's N5X family of engines. Outside of making a mess of the engine, it can also lead to a majorly expensive repair if the issue is not addressed. It is known that oil leaks from the oil filter housing gasket can cause the serpentine belt to swell and slip off the crank pulley. Because of the design of the crank pulley, the belt can only slip off behind the pulley between the engine block. If this happens the belt will be shredded and forced through the front crank seal. This is a preventable problem by repairing an oil filter housing leak.

The seal that causes this problem, to begin with, is a soft rubber seal that sits in the filter housing and seals it to the cylinder head. Over time this seal becomes brittle and shrinks losing its ability to make a leak-free seal. This, in turn, allows oil to leak down the side of the engine. Bad oil filter housing leaks can cause a lot of issues later on if not addressed as soon as possible.

Current Part Numbers: 11428637821 and 11428637820

Previous Revisions
11-42-7-537-293, 11 42 7 537 293, 11.42.7.537.293, 11427537293
Cross Reference
11427537293, 11-42-7-537-293, 11 42 7 537 293, 11.42.7.537.293
11428637821, 11-42-8-637-821, 11 42 8 637 821, 11.42.8.637.821

Previous Revisions
11-42-7-525-335, 11 42 7 525 335, 11.42.7.525.335, 11427525335
Cross Reference
11427525335, 11-42-7-525-335, 11 42 7 525 335, 11.42.7.525.335
11428637820, 11-42-8-637-820, 11 42 8 637 820, 11.42.8.637.820
11428637820, 11-42-8-637-820, 11 42 8 637 820, 11.42.8.637.820