ARP 234-2504 Harmonic Balancer Bolt Kit 12-Point Head

ARP's high-performance harmonic balancer bolt kit is engineered to withstand the extreme forces generated as the crankshaft flexes and twists during engine operation. These ultra-strong bolts are rated at 200,000 psi tensile strength, allowing you to apply maximum clamping force to ensure the harmonic balancer remains securely locked in position.

Key Features:

• 200,000 psi tensile strength for superior clamping force
• Extra tall 12-point head design accepts deep sockets and prevents stripping
• 1/4 inch thick wide-area washer for optimal load distribution
• Square drive version available with 1/2 inch drive forged into bolt head
• Constructed from heat-treated 8740 chrome moly steel
• Heavy-duty black oxide finish for corrosion resistance

Square Drive Capability:

The square drive variant features a 1/2 inch square drive forged directly into the bolt head, enabling engine rotation using any standard 1/2 inch drive ratchet or breaker bar. This innovative design eliminates the need for additional tools when rotating the crankshaft assembly during installation or service procedures.

Ideal for high-performance and racing applications where reliability and strength are critical. ARP's precision manufacturing ensures consistent torque values and long-term durability under extreme conditions.