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 engineered for engine builders and high-performance tuners who demand reliability under extreme combustion pressures. This seven-piece chromoly bolt kit features 12mm x 1.25 thread fasteners with 1.000-inch length and 12mm tri-square drive heads, finished in black oxide for corrosion resistance and precise torque control during installation.

Chromoly steel construction provides superior tensile strength compared to standard OEM fasteners, critical for turbo applications where flywheel loads increase significantly under boost. The tri-square drive head design reduces fastener rounding risk—a common failure point during reassembly—and ensures uniform clamping load across all seven bolts. Black oxide finish protects against oxidation while maintaining low friction for accurate torque readings. This is a direct replacement for OEM Hyundai applications, engineered to OEM specifications for the 2.0L G4KF turbocharged engine platform.

This kit is suited for engine rebuilds, turbo upgrades, and high-boost applications where factory fasteners have reached service limits or where upgraded strength is required. Serious enthusiasts and professional engine shops building or refreshing turbocharged G4KF platforms will rely on ARP's precision manufacturing to maintain clamping integrity across thermal cycles and sustained boost pressure. Proper torque specifications and sequence—available from engine build literature—are essential for optimal performance and longevity of the flywheel assembly.