MAHLE Original 06-12 BMW 550I 4.4L Engine Valve Stem Seal Set

If you're rebuilding the top end of your BMW, replacing the valve stem seals is a crucial step. This set from Victor Reinz is designed to fit a wide range of BMW models, including the 5 Series (like the 545i and 550i), 6 Series (such as the 645Ci and 650i), 7 Series (including the 745i and 750i), and the X5 and X6 SUVs. These seals are essential for keeping oil from leaking down the valve guides into the combustion chamber, which can cause blue smoke on startup, increased oil consumption, and fouled spark plugs.

Victor Reinz valve stem seals are well-built to handle the heat and stress found in these engines. They are made from durable materials that resist degradation from oil and high temperatures. Replacing these seals during an engine overhaul or cylinder head repair ensures proper sealing, which helps maintain engine performance and reduces emissions. This set includes all the necessary seals for your engine, making it a convenient choice for your repair.