Valve covers, sometimes called rocker covers, are absolutely important parts of a motorcycle engine. Made of plastic or metal and bolted to the top of the cylinder head, they work with valve cover gaskets. The latter seal the gap between the valve cover and the cylinder head. Together, they prevent moisture infiltration and oil leakage, maintain compression, and reduce the effects of vibrations on the bike chassis.

How Valve Covers Fail

A valve cover is always oil-soaked, however, to help prevent engine overheats and surface oxidation and ensure it doesn't melt, and if it ever cracks or loosens, that all-important oil can leak out. A lack of oil has several consequences. One is excess friction produced between many moving parts that should otherwise be greased up and greased well; this almost invariably wears the parts out, and it can eventually break them. Engine overheats can also result.

The Signs of a Cracked or Loose Valve Cover

Your bike engine running roughly
Loss of power
The smell of burning oil
Dirt and debris caked on the valve cover
Oil slicks left behind

See any of these, and you should run an inspection, following it with a replacement of any and all affected parts. It may be necessary to replace the valve cover gaskets, too, as their highly corrosive environment, mechanical stress, and sudden temperature increases take their toll on them. If you're looking to buy new ones for a project, auto parts store carries them both. They're genuine OEM, too -- a guarantee they'll fit your BMW motorcycle model from the start.

Genuine BMW Motorrad Valve Covers for Sale Online -- Shop Now

Want to find what your bike needs more quickly and easily? Simply browse our catalog by model and model year. Order now, and you'll enjoy not only fast shipping but also delivery directly to your door; you'll be swapping the old for the new in no time.