Description: 5.7l. Ac. Water pump, alt, ps. 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

Description: 6.0 & 6.2L. Serpentine belt tens. With ac, 5.7L. GTO. Repair noisy idler pulley bearing Manufactured to GM OE specification for fit, form, and function