This product features a unique, inter-locking idler bearing adjustment and a durable double-row, High RPM Bearing. Reliability, Consistency and Product Quality are the backbone of MST..not to mention how GREAT this system will look on your engine. Works with Alternator or Generator!!! It delivers greater horsepower by reducing belt slip and providing a much smoother operation than the standard V-belt setup. The MST Serpentine Pulley Assembly will deliver mile after mile of adjustment free performance!!! Kit includes: Crank Pulley, Alt/Gen Pulley, Idler Bracket Assembly with Bearing, Stainless Steel Crank Bolt and Alt/Gen Nut, 4-Rib Belt, Mounting Hardware, and installation instructions. This kit has the standard slinger nose as found on original equipment pulleys.
MST is based out of Tulsa, Oklahoma. Their products are manufactured out of billet aluminum and CNC machined to perfection right here in the USA!