Perkins T402790 Piston Kit – Genuine Replacement Assembly

The Perkins T402790 piston kit includes the piston, rings, gudgeon pin, and circlips. It’s the same bowl design Perkins uses in the original engines, so combustion and airflow stay right. In our experience, using genuine piston kits avoids problems we’ve seen with cheaper copies—like uneven wear or poor fit. If you’re overhauling a Perkins engine, this kit saves time and keeps performance where it should be.