Genuine OEM Mercedes-Benz Compressor Pulley, part number A0002341312. This pulley is a component of the air conditioning compressor, driven by the engine's serpentine belt to power the compressor. It is located on the front of the air conditioning compressor. Made from high-quality materials for durability. Genuine OEM parts are critical for AC system components to ensure correct rotational speed and smooth operation, preventing premature wear and system failure.