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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

Regular price $194.25 USD
Regular price $215.84 USD Sale price $194.25 USD
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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.

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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 fitment

Parts 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

Questions about BMW 135i/335i/X6/Z4 N54B30 head gasket

Will this fit my BMW 135i/335i/X6/Z4 N54B30?
It is listed for the BMW 135i/335i/X6/Z4 N54B30. Check your year, model, engine and trim against the title and details above. If anything is different, contact us and we will confirm fitment before you order.
What are signs of a bad head gasket?
Common signs are overheating, white exhaust smoke, coolant loss with no visible leak, and milky oil.
Should I resurface the cylinder head?
If the head is warped or the surface is damaged, a machine shop can check and resurface it before the new gasket goes on.
Where do specs and warranty details come from?
From Cometic. Each brand sets its own specs, lead times and warranty terms, and they can change. The product details above are the latest we have.