Billet aluminum pulleys
BOLT-ON for 2003-2017 Vipers
Type III black anodized aluminum
Underdrive Crank Pulley - Reduces weight and gains power by slowing the accessories 25% vs the OEM steel pulleys. Track proven design with no battery or other reliability issues. Helps to prevent collapse of coolant hose. Complete kit includes all bolts and belts. Has a replaceable bearing. Upgrades OEM P/N: 05037204AB and modifies OEM Belt P/N: 05037862AE
Gen IV and V Pulley Installation Instructions
Idler Pulley - Replaces factory steel pulley and has a replaceable bearing, Bearing is an upgraded stainless steel sealed bearing with stainless retaining pin. Includes longer bolt. Upgrades OEM P/N: 04792581AB
Tensioner Pulley - Replaces factory plastic tensioner and has a replaceable bearing. Bearing is an upgraded stainless steel sealed bearing with stainless retaining pin. Includes longer bolt. Upgrade to Pully on OEM Assembly P/N: 05086500AA