This is a genuine TOYOTA belt tensioner assembly, part number 16620-0S012. It is designed to maintain the correct tension on your vehicle's accessory drive belt, which is crucial for the proper functioning of components like the alternator, power steering pump, and air conditioning compressor. Proper belt tension prevents slippage, which can lead to reduced performance of these accessories and premature wear on the belt itself. A failing tensioner can cause noise, belt wear, and accessory malfunction. Replacing it with a genuine TOYOTA part ensures compatibility and reliability. This assembly is specifically for TOYOTA models. Always verify fitment with your vehicle's VIN to ensure you are purchasing the correct part for your specific application. Installation by a qualified mechanic is recommended.
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