The Can-Am 420845106 Piston Circlip is an authentic OEM replacement part designed to securely retain the piston pin within the piston assembly. This critical component ensures proper engine function and prevents piston pin displacement. Manufactured to Can-Am's rigorous specifications, it guarantees precise fitment and reliable performance across a wide range of compatible Can-Am ATV, SSV, and Spyder models. Always use genuine OEM parts for optimal durability and compatibility.