8in 8-Rib Crank Pulley 86-93 Ford Mustang 5.0L (w/4.62in Accessory Underdrive)

Upgraded Crankshaft Pulley. Dead alternators, irregular idling, and odd engine vibrations could all be signs of a cracked or worn crankshaft pulley. Fortunately, the Mustang 8-Rib Serpentine Crank Pulley provides an upgraded replacement for your crankshaft. The 8-rib design ensures better contact with your drive belts and helps to preserve their longevity. As a result, this replacement pulley extends the lifespan of critical crankshaft drive belt components. 4.6-Inch Underdrive. In addition, this pulley features a 4.6-inch underdrive pulley designed to slow down accessories to prevent power loss. With that in mind, an upgraded crankshaft pulley provides meaningful power gains for your engine, in addition to prolonging its lifespan. 8-Rib Design. This drive pulley features 8-rib grooves designed for more surface contact with your drive belts. As a result, this pulley reduces wear caused by excessive use or slippage that plagues many drive belt systems. CNC Machined. CNC machined parts allow for the perfect fit and finish to ensure that your drive belt system operates at maximum efficiency. In addition to this superior design enables the pulley to resist road vibrations better and achieve a longer service life. T6 6061 Aluminum. This pulley is manufactured from premium, hardened t6 6061 aluminum capable of handling excessive road vibrations and extreme dampening forces. Trust this pulley to deliver improved performance for your engine and provide an exceptionally long and problem-free service life.