Proform 5-Rib Serpentine Alternator Pulley - 62.5 mm Diameter - 0.664 in Shaft - Lightning-Bolt Alternator WM304B-8 A dwell control circuit ensures

A dwell control circuit ensures long

2000-2013 GMC Yukon XL 1500Mr

900 RPM in 100 RPM increments

Very strong mid-range

safe and sound

Proform 5-Rib Serpentine Alternator Pulley - 62.5 mm Diameter - 0.664 in Shaft - Lightning-Bolt Alternator WM304B-8 A dwell control circuit ensuresThis steel serpentine pulley replaces the V Belt pulley that is included with the PROFORM Lightning Bolt alternator, part number 66435. Product Description: Alternator Pulley Serpentine 5 Rib 62. 5 mm Diameter 0. 664 in Shaft Hardware Included Steel Zinc Plated Proform Lightning Bolt Alternator Sold Individually PROFORM invites racers to experience the strength, innovation, and power behind the PROFORM brand. PROFORM manufactures Parts that Perform!