Flywheel Bolt Kit Jeep 4.0L Inline 6-Cylinder

The Flywheel Bolt Kit Jeep 4.0L Inline 6-Cylinder is engineered for Jeep owners and builders who demand reliability in their engine's most critical fastening points. The flywheel is where rotational force transfers from engine to transmission—and the bolts holding it must never fail. This ARP kit replaces OEM fasteners with premium chromoly hardware that resists stretch, fatigue, and vibration over thousands of heat cycles, making it essential for any 4.0L Inline 6-Cylinder engine running stock power or modified performance builds.

ARP's Flywheel Bolt Kit features six chromoly fasteners finished in black oxide, each with a 12-point head design that distributes clamping load more evenly than conventional 6-point heads and reduces fastener rounding risk during installation. Chromoly construction—an alloy of chromium and molybdenum—delivers superior tensile strength and fatigue resistance compared to standard grade bolts, critical when flywheel bolts experience cyclic stress from engine vibration and drivetrain shock. The black oxide coating resists corrosion while maintaining a professional appearance, and the precise tolerances ensure proper torque specs are repeatable across multiple service intervals.

This kit is ideal for Jeep 4.0L Inline 6-Cylinder engine swaps, restorations, high-mileage rebuilds, and any performance upgrade where engine internals are being accessed. Whether you're installing a reinforced flexplate, upgrading to a lighter aluminum flywheel, or simply replacing aged fasteners during a major service, ARP bolts provide the clamping force consistency needed to prevent creep and catastrophic flywheel separation. Installation requires standard hex wrench tools and torque specs per ARP's technical documentation; proper installation technique and torque values are essential to achieve the designed preload and longevity of this premium fastener set.