Moroso 64870 - Pulley, Alternator, Gm/Ford

Billet Aluminum Alternator Pulley GM/Ford Alternators With 0.65625 in. Dia. Shaft 36 Deg x W-0.5 in. Belt OD-5 In. V-Belt Design Single Groove • Machined from the highest grade aircraft billet aluminum for maximum durability • Deep precision machined grooves ensure belt retention even during extreme changes in engine RPM • When crankshaft and water pump pulleys are used together, water pump speed is reduced by approximately 30% • Hard-coat anodized for extended life