ARP Square Drive Harmonic Balancer Bolt

The ARP Square Drive Harmonic Balancer Bolt is a high-strength fastener for securing the harmonic balancer (crankshaft damper) to the crankshaft. ARP builds it to hold the balancer in place under hard use, including street performance, racing, and heavy-duty applications. It is a better choice than a standard factory bolt when you want extra strength and reliability.

Key Features:

• Square drive head design for a secure, positive tool engagement during installation and removal
• Engineered for strength and durability in high-load, high-vibration engine environments
• Made in the USA under ARP's stringent quality control standards
• Rolled threads for improved fatigue resistance
• Available in multiple configurations to match different engine families (see individual listings for specifics)

ARP is a trusted name in performance fasteners. Its products are widely used by engine builders, racers, and enthusiasts who need dependable clamping force and long service life. Choose the variant that matches your engine application.