Our 5″ Diameter 5/8″ Bore Transmission Pulley is made of high-quality heat-treated aluminum to help dissipate heat for prolonging belt life and better grip. 

Hard anodized for wear resistance, machined with precision V-Belt geometry for maximum grip to transfer power to the rear tires. In testing, our billet pulleys create 40% more grip than a stamped steel mower pulley. In a straight line 1/8 mile drag test, our billet pulleys (against pulleys of the same size) went 3/4 second faster.