The Dayco 1.10” x 105.906” Poly Rib® Heavy Duty Serpentine Belt ensures you are Ready for the Road Ahead™ with its specially-formulated treatment of the polyester cord, providing strength, tension, stability and reliability your engine requires. This heavy duty v-ribbed belt delivers more flexibility and increases airflow around the belt to run cooler and last longer. This patented top-cogged design ensures top performance. FleetPride is your First Click in Heavy Duty®.