Genuine OEM Audi Engine Balance Shaft Weight, part number 059103331J. This precision-engineered component plays a vital role in reducing engine vibrations and enhancing overall engine smoothness and longevity. It is typically positioned at the rear of the engine's balance shaft assembly. Weighing approximately 0.473 kg, this part is designed to counteract rotational imbalances within the engine. Choosing a genuine OEM balance shaft weight ensures the exact mass, dimensions, and material properties required for optimal vibration damping and engine stability.