Description: 5.3, 6.2L. Silverado, sierra. 5.3l. Silverado, sierra. 6.2l. Silverado, sierra. 4.3l. 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: 4.3L. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors