CP 5100 Series Chamfered Single Wrist Pin (use w/ SC7421 Subaru EJ257 WRX STi)

If you're rebuilding the engine in your Subaru WRX STi with the EJ257 engine, you'll need reliable components to handle the increased stress. These CP 5100 Series wrist pins are designed for that purpose, working with the SC7421 pistons to ensure your engine's internal components stay securely connected under demanding conditions.

These wrist pins are chamfered, which helps to reduce stress risers and prevent premature wear. They are made from a well-built steel alloy that offers solid strength for performance applications. This particular pin is sized for a 0.180 inch wall thickness, a common specification for many performance builds where durability is key.