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ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
Protect your high-performance GM Duramax engine's crankshaft and harmonic balancer with the Auto Racing Products (ARP) 129-2503 Harmonic Balancer Bolt. This single, robust bolt is a critical upgrade for any Duramax owner, especially those running increased horsepower or higher RPMs. Manufactured from premium chromoly steel, it delivers significantly greater tensile strength and fatigue resistance than OEM bolts, ensuring your balancer stays securely in place under the most demanding conditions.
The ARP 129-2503 balancer bolt features an 18 mm x 1.50 thread and a substantial 2.750 inch length, perfectly suited for GM Duramax applications. Its 36 mm 12-point head design allows for maximum torque application and prevents rounding, providing an exceptionally strong and reliable connection. The durable black oxide finish not only resists corrosion but also adds a professional, high-performance aesthetic to your engine's front end, making it a smart and visually appealing upgrade.
For Duramax owners who demand the best in engine reliability and performance, the ARP 129-2503 Harmonic Balancer Bolt is an indispensable component. ARP's commitment to engineering excellence means this bolt is designed to prevent balancer walk and crankshaft damage, crucial for the longevity of your diesel engine. Invest in the strength and peace of mind that only ARP can provide, and keep your Duramax running strong with parts from GGCRACING.COM.
Other popular Auto Racing Products products customers consider together:
ARP (Automotive Racing Products) makes the strongest fasteners in motorsport — head studs, main studs, rod bolts, and flexplate bolts used by every Formula 1, NHRA, NASCAR, and championship motorsport program. Aerospace-grade alloys, exact-fit machining.
Protect your high-performance GM Duramax engine's crankshaft and harmonic balancer with the Auto Racing Products (ARP) 129-2503 Harmonic Balancer Bolt. This single, robust bolt is a critical upgrade for any Duramax owner, especially those running increased horsepower or higher RPMs. Manufactured from premium chromoly steel, it delivers significantly greater tensile strength and fatigue resistance than OEM bolts, ensuring your balancer stays securely in place under the most demanding conditions.
The ARP 129-2503 balancer bolt features an 18 mm x 1.50 thread and a substantial 2.750 inch length, perfectly suited for GM Duramax applications. Its 36 mm 12-point head design allows for maximum torque application and prevents rounding, providing an exceptionally strong and reliable connection. The durable black oxide finish not only resists corrosion but also adds a professional, high-performance aesthetic to your engine's front end, making it a smart and visually appealing upgrade.
For Duramax owners who demand the best in engine reliability and performance, the ARP 129-2503 Harmonic Balancer Bolt is an indispensable component. ARP's commitment to engineering excellence means this bolt is designed to prevent balancer walk and crankshaft damage, crucial for the longevity of your diesel engine. Invest in the strength and peace of mind that only ARP can provide, and keep your Duramax running strong with parts from GGCRACING.COM.
Other popular Auto Racing Products products customers consider together:
