CP Wire Lock

This is a wire lock from CP Pistons, part number 748X050 SWL. It's used to secure the piston pin in place within the piston. These locks are a common component in many engine builds, especially when you're working on performance or custom engines where the stock retaining method might not be sufficient or needs replacement.

The wire lock design is a well-known method for keeping the piston pin from walking out of the piston bore. It's a simple yet critical piece of hardware. When installed correctly, it provides a solid way to ensure the piston pin stays seated, which is essential for the smooth operation of your engine. This particular part is designed for a specific application, so double-checking the part number against your engine's requirements is always a good idea.