Engine Valve Cover With Gasket Fit For Seat Exeo For Volkswagen Amarok CAGA CJCA CDCA CNEA 2.0LDescription Sealing The Engine: One Of The Main Functions Of The Valve Cover Is To Seal The Top Of The Engine To Prevent Oil Leakage. It Covers The Valve Chamber And Valve Mechanism, Ensuring That The Oil Remains Inside The Engine During Normal Operation And Preventing Oil From Entering Other Components Around The Engine. Protecting The Valve Mechanism: The Valve Cover Covers The Valve Mechanism At The Top, Including The Valve Spring, Valve, And Valve