Flywheel Bolt Kit - Hyundai 2.0L G4KF Turbo

The ARP Flywheel Bolt Kit for Hyundai 2.0L G4KF Turbo (SKU ARP128-2801) is a premium-grade fastener set designed for engine builders and high-performance tuners who require reliability under extreme combustion pressures. This seven-piece chromoly bolt kit features 12mm x 1.25 thread fasteners with a length of 1 inch and 12mm tri-square drive heads, finished in black oxide for corrosion resistance and precise torque control during installation.

Constructed from chromoly steel, this kit provides superior tensile strength compared to standard OEM fasteners, which is critical for turbo applications where flywheel loads increase significantly under boost. The tri-square drive head design minimizes the risk of fastener rounding—a common failure point during reassembly—and ensures uniform clamping load across all seven bolts. The black oxide finish protects against oxidation while maintaining low friction for accurate torque readings.

This kit is particularly suited for engine rebuilds, turbo upgrades, and high-boost applications where factory fasteners may have reached their service limits or where enhanced strength is necessary. Serious enthusiasts and professional engine shops working on turbocharged G4KF platforms will benefit from ARP's precision manufacturing, which helps maintain clamping integrity across thermal cycles and sustained boost pressure.