This is a genuine MERCEDES-BENZ Belt Tensioner/Pulley, part code A4712002170. It is engineered to meet the exact specifications of your vehicle, ensuring seamless integration and optimal functionality. A properly functioning belt tensioner and pulley system is crucial for the longevity and efficiency of your engine's accessory drive. It maintains the correct tension on the serpentine belt, preventing slippage and ensuring that components like the alternator, power steering pump, and air conditioning compressor operate as intended. By choosing this authentic MERCEDES-BENZ part, you are investing in the quality and reliability that the brand is known for. This component is built with durable materials to withstand the demanding conditions within the engine bay, providing consistent performance and peace of mind.
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