Engine Head Valve Seal Set (24 PCS) Audi A6 A7 A8 Q7 Q8 S4 S5 SQ5 3.0L EA839 06L109675D

Valve stem oil seals play a critical role in the Audi 3.0T EA839 engine by regulating the amount of oil that lubricates the valve guides while preventing excess oil from entering the combustion chamber. Over time and thousands of heat cycles, factory seals harden, shrink, and lose their sealing ability. This failure leads to excessive oil burning, blue smoke on startup or deceleration, and harmful carbon buildup on the valves and pistons. This complete 24-piece valve seal set is manufactured from premium, high-temperature resistant materials to provide a long-lasting, tight seal, restoring factory oil control, reducing emissions, and maximizing engine efficiency.