Genuine OEM Volkswagen Timing Belt Idler Pulley, part number 077109244E. This idler pulley is a critical component in the engine's timing system, guiding the timing belt and maintaining proper tension. It ensures the timing belt operates smoothly and prevents slippage, which is crucial for accurate valve timing. Manufactured with high-quality bearings and materials to withstand engine conditions. Genuine OEM parts provide the exact specifications required for reliable engine timing and longevity.