Flywheel Bolt Kit - Mopar 5.7/6.1L Hemi

The Flywheel Bolt Kit - Mopar 5.7/6.1L Hemi from ARP represents the gold standard for engine fastener reliability in high-performance and heavy-duty applications. Designed for Gen III Hemi engines, this Pro Series kit addresses a critical point of failure that field experience and engineering data have proven demands premium materials and precision manufacturing. Whether you're building a rig for law enforcement pursuit, military logistics, or serious off-road duty, the integrity of your flywheel bolts directly impacts engine security and mission readiness.

Each bolt in this eight-piece set is machined from chromoly steel and finished in black oxide, delivering superior tensile strength and corrosion resistance compared to OEM fasteners. The 10mm x 1.00 thread pitch mates precisely with Mopar Gen III Hemi specifications, while the 1.000-inch length ensures optimal engagement without bottoming or protrusion. The 12-point head design distributes clamping load evenly across the bolt head, reducing stress concentration and fatigue failure risk—a critical consideration in environments with high vibration, extreme temperatures, or sustained high-RPM operation. ARP's Pro Series designation reflects their commitment to manufacturing consistency and material traceability, ensuring every bolt meets or exceeds military-grade fastener standards.

Operators and technicians who rely on engine durability in demanding conditions—from long-haul transport to field repair operations—recognize that OEM flywheel bolts represent unnecessary risk when premium alternatives are available. Installation is straightforward: simply replace the original hardware with this kit using standard torque specifications for your platform. Compatibility is limited to Mopar Gen III Hemi engines (5.7L and 6.1L displacements), making verification before purchase essential. The compact 0.52-pound weight and modest footprint make storage and transport practical for mobile maintenance teams and field kits.