Genuine OEM Audi Engine Exhaust Valve, part number 059109611K. This valve controls the release of exhaust gases from the engine cylinder, playing a crucial role in engine combustion and emissions. It is located within the cylinder head assembly. Weighing approximately 0.053 kg and measuring 98mm in length, this valve is precision-engineered. Choosing a genuine OEM exhaust valve ensures precise fitment, correct material composition for high-temperature resistance, and factory-specified sealing, which are vital for maintaining engine compression and preventing premature wear.