Caterpillar Belt Tensioner 133-3545 | Fits C10, C12, and 3176 Engines | Genuine CAT Replacement

The Caterpillar Belt Tensioner (Part Number: 133-3545) is a reliable replacement component designed for CAT engines, including C10, C12, and 3176 models. This belt tensioner ensures precise tension and alignment of the drive belt, enabling smooth operation of essential engine accessories such as the alternator, water pump, and air conditioning system. Engineered for durability and performance, it is suitable for heavy-duty applications in industrial machinery, construction equipment, and vehicles. Built to Caterpillar’s exacting standards, this tensioner offers long-lasting service and reduces wear on your engine’s drive components.