ARP (129-2503) Harmonic Balancer Bolt Kit


ARP Harmonic Balancer Bolt Kit for your 2001-2015 GM 6.6L Duramax 129-2503

ARP Harmonic balancer bolt is optimized for enhanced reliability and increased strength. Each kit includes Pro Series balancer bolts that are rated at 200,000 psi tensile strength, and 8740 parallel ground washers. ARP bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining and designed to exceed the OEM fasteners in strength and durability. Optimum design, enhanced reliability and increased strength are the main attributes of ARP’s Pro Series balancer bolt kits.