Genuine OEM Mercedes-Benz Power Steering Pump Belt Pulley, part number A0004661015. This pulley is a key component of the power steering pump system, driven by the engine belt to operate the pump. It is designed for precise rotation and load bearing. The pulley has a diameter of 0.14 meters. Genuine OEM pulleys are manufactured with exact tolerances to ensure smooth operation, minimize vibration, and maintain the integrity of the belt drive system.