Dayco Auxiliary, Drive, V-Ribbed Belt Tensioner Pulley - APV2528 - OE Quality The Dayco Auxiliary Drive V-Ribbed Belt Tensioner Pulley, part number APV2528, is a high-quality OE (Original Equipment) replacement part designed for vehicles. Made by the reputable brand Dayco, this tensioner pulley ensures proper belt tension and performance for your vehicle's auxiliary drive system. With reference OE/OEM numbers such as 2S616A228AG, 9655321080, and 9638380780, this pulley is a reliable and durable component that will keep your vehicle running smoothly. It is suitable for various car models and is an essential part for maintaining the overall functionality of the vehicle's engine.