MOPAR 04801834AB Alternator for 11-23 5.7L, 11-23 6.4L & 15-21 6.2L Whipple 03-06 GM Truck 4.8L SC Kit / Intercooled / 4.125" SCP / W140AX# Whipple 03-06 GM Truck 6.0L SC Kit / Intercooled / 3.625" SCP / W140AX# Whipple 07-13 GM Truck 6.0L SC Kit / Intercooled / https://ricardomonnk.anchor-blog.com/8673943/indicators-on-whipple-superchargers-website-you-should-know