Genuine OEM Jaguar Exhaust Variable Valve Control Unit, part number AJ814118. This component precisely regulates the exhaust valve operation, adjusting camshaft timing to optimize engine performance across various RPMs and loads. It is an integral part of the engine's variable valve timing system. Weighing 0.744 kg, this unit is manufactured to factory specifications. Using a genuine OEM unit ensures precise timing adjustments, proper engine function, and long-term reliability, preventing potential engine damage or performance issues associated with aftermarket alternatives.