Cometic
Cometic BMW 135i/335i/X6/Z4 N54B30 85mm Bore .044in MLX Head Gasket
Cometic BMW 135i/335i/X6/Z4 N54B30 85mm Bore .044in MLX Head Gasket
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Listed for: BMW 135i/335i/X6/Z4 N54B30Fitment notes & questions
BMW 135i/335i/X6/Z4 N54B30 85mm Bore .044in MLX Head Gasket from Cometic, listed for BMW. Head gasket jobs take the top of the engine apart, which is why most people replace the related gaskets and bolts at the same time.
Quick facts
- Brand: Cometic
- Part type: Head gasket
- Listed for: BMW
Listed fitment
- 2008-2010 BMW 135i Base
- 2007-2010 BMW 335i Base
- 2009-2010 BMW 335i xDrive Base
- 2008-2010 BMW X6 xDrive35i
- 2009-2016 BMW Z4 sDrive35i
- 2011-2016 BMW Z4 sDrive35is
Tip: Most head gaskets call for new head bolts and a flat, clean deck surface. Check the head and block before you reassemble.

About this head gasket for the BMW 135i/335i/X6/Z4 N54B30
Head gasket jobs take the top of the engine apart, which is why most people replace the related gaskets and bolts at the same time.
Fitment notes
- Listed for: BMW 135i/335i/X6/Z4 N54B30.
- Specs, lead time and warranty come from Cometic and can change. The details above this guide are the latest we have.
Not sure it fits? Tell us exactly what you drive and we'll confirm fitment first. It's free and saves a return.
Ask about fitmentParts that usually go with it
- Head bolts. Many engines use torque-to-yield head bolts that should not be reused.
- Coolant. Refill with the coolant type your engine calls for.
- Valve cover and intake gaskets. They come off during the job, so it is the time to replace them.
More for your car: BMW Parts · All Head Gaskets · Engine