Key Features: Harmonic Balancer Bolt - 1/2-20 in Thread - 1.550 in Long - 5/8 in 12 Point Head - Chromoly - Black Oxide - Big Block Chevy - Each. AMCO AUTO PARTS, LLC. Back to top. State Restrictions.
BBC Balancer Bolt Kit ARP 135-2501
ATI Harmonic Balancer Bolt Kit 950200; Replacement Bolt Pack 3/8-16, 5/16-18
ARP 129-2503 Black GM 6.6L Duramax balancer bolt kit "BOLT ONLY"
Arp 129-2503 GM 6.6L Duramax balancer bolt kit "BOLT ONLY"
ARP BBC Main Bolt Kit - Fits 4-Bolt 135-5201
ARP 190-2501 Pontiac 350 389 400 455 Engines 12 Point Balancer Bolt Kit
