Product Details: The Dayco Double Cogged Accessory Drive Belt is the perfect solution for keeping tension throughout the life of your belt. Constructed with raw edges to provide consistent grip and prevent slippage, this belt is ideal for smaller-diameter pulleys, as the top and bottom cogs provide great flexibility for extended life. This belt meets the requirements of SAE J636 and J637, making it the perfect choice for your accessory drive belt needs. FleetPride is your First Click in Heavy Duty®.