Grooved Accessory-Drive Tensioner Pulley
87mm 6-Rib Tensioner Pulley
This pulley is designed as a direct replacement for the plastic factory pulley used in many LS-based GM applications, including LS3, L99, and LSA-equipped vehicles. Like Metco pulleys designed for the rigors of the supercharger drive, this accessory-drive pulley benefits from the same manufacturing processes that make our supercharger-drive pulleys bulletproof. We use certified 6061 aluminum, which is precision-machined on a state of the art CNC lathe, coated with the same mil-spec anodizing, and then fitted with the same double-seal, high-speed, high-load bearing. All pulleys are run on a dedicated fixture prior to shipping to ensure the pulley meets our requirements in every respect.
This pulley matches the offset, diameter, and mounting of the original pulley, so no modifications are necessary for installation. The required belt length is unchanged.