Fluidampr High Strength Bolt Kit for Crank Pulley/Harmonic Balancer 01-23 GM 6.6L Duramax

For secure installation and peace-of-mind when further modifying your diesel engine, a new High Strength Bolt Kit is recommended. This kit fits the 6.6L Duramax engine, and features a heat treated, high strength extended length bolt from ARP® and a .010” thick diamond impregnated friction washer for the ultimate in holding power.