Genuine OEM Jaguar Balancer Drive Bush, part number AJ813247. This precision-engineered bushing is a critical internal engine component, designed to support the smooth rotation of a balancer drive component. Its function is to reduce friction and wear, ensuring the efficient and quiet operation of the engine's balancing system. This small, cylindrical metal bush weighs approximately 0.052 kg. Choosing a genuine OEM balancer drive bush ensures exact manufacturing tolerances, proper material composition, and the precise fitment required for optimal engine performance and long-term reliability, preventing premature wear in critical rotating assemblies.