Mitsubishi Main Stud Kit 12pt.

The ARP Mitsubishi Main Stud Kit 12pt. is a precision-engineered fastener system designed for professional engine builders, performance technicians, and serious automotive enthusiasts who demand reliability in high-stress applications. This chromoly main stud kit replaces factory fasteners on Mitsubishi 4-cylinder engines, providing superior clamping force and vibration resistance compared to conventional bolts. Built to withstand the extreme pressures generated during sustained operation, this kit serves as insurance against catastrophic engine failure in both street and competition environments.

Constructed from chromoly steel and finished in black oxide coating, the Mitsubishi Main Stud Kit 12pt. delivers consistent, measurable advantages over OEM hardware. Chromoly material offers superior tensile strength and fatigue resistance, allowing the studs to maintain clamp load under thermal cycling and engine vibration. The 12-point nut design enhances grip geometry during installation, reducing the risk of rounding and ensuring uniform torque distribution across all two main bolt positions. Black oxide finish provides corrosion resistance while maintaining clean, professional appearance and reducing galling during assembly. ARP's precision manufacturing tolerances guarantee proper fit and repeatable performance across multiple installations.

This kit is essential for any Mitsubishi 4-cylinder engine experiencing elevated boost pressures, forced induction modifications, or extended high-RPM duty cycles. Engine builders and power-train specialists commonly specify ARP main studs when upgrading turbocharged or supercharged applications where factory fastener integrity becomes the limiting factor. Proper installation requires ARP fastener lubricant and adherence to manufacturer torque specifications; consultation with ARP technical documentation or your engine builder ensures optimal performance. Compatible with 2-bolt main configurations across Mitsubishi's 4-cylinder platform, making this kit the standard choice for reliability-focused builds.