BMW N55B30 spark plug recess insert gasket 11127573439

Fix oil leaks into spark plug wells on your N55B30 engine - before they foul coils or trigger misfires. This is the genuine BMW gasket (part number 11127573439) used in the spark plug recess of the valve cover.

It fits E82 135i, E90/E92/E93 335i, F10 535i, F12 640i, F25 X3 xDrive35i, E70 X5 xDrive35i and E71 X6 xDrive35i - all with the N55B30 engine.

• Direct OEM replacement - no adaptation needed
• Prevents oil migration from valve cover into spark plug tubes
• Common failure point on high-mileage or track-day N55s