The DAYCO 1.1" x 105.51" poly rib heavy duty serpentine belt is crafted specifically for heavy duty applications, including Kenworth trucks. This belt guarantees a snug fit and optimal performance due to its advanced poly-rib material construction, which provides exceptional durability in demanding conditions. It offers excellent resistance to heat and abrasion, thereby prolonging its operational life. The belt is engineered to maintain consistent tension, minimizing slippage and enhancing power transmission, while supporting multiple accessory drive systems to improve overall vehicle functionality.