V-Ribbed Serpentine Belt - GM (12571918)

Relay. 3.5L, all. Terraza, Uplander. Without rear ac. 3.4 & 3.5L. 3.5L, 2nd design. Aztek, Rendezvous. 3.5l. Montana SV6. Allows for the operation of various pulleys, and drive belt accessories, with the use of a single belt Creates a secure point of contact with the pulley, which allows for traction Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type