Dayco 5040439 Serpentine Belt , Black
Designed for high mileage multiple-accessory drives, Dayco's ""W"" profile belt (patent pending) is the most innovative advancement in multi-rib belt design in over 25 years. Dayco Poly-Rib Belts meet or exceed SAE J1459 and SAE J2432 specifications. This Poly-Rib Belt is another Dayco product proudly made in the USA.
