Genuine OEM Jaguar Exhaust Valve, part number AJ813298. This valve is a crucial component within the engine's cylinder head, responsible for controlling the precise flow of exhaust gases out of the combustion chamber. It operates in conjunction with the camshaft and valve springs to ensure optimal engine performance and emissions control. Weighing 0.036 kg, this valve is engineered for high-temperature and high-stress environments. Using a genuine OEM exhaust valve ensures correct material composition, heat treatment, and dimensional accuracy for reliable sealing and long service life.