Piston

The collection includes individual engine pistons, piston kits, multi-piece piston sets, and assemblies with piston pins and retaining clips. Some listings also cover oversize pistons and hydraulic piston shoes. Check each product page for its exact type and included components.

Listings include selected applications for Caterpillar, Cummins, Deutz, Isuzu, Hino, John Deere, Komatsu, Kubota, Perkins, and Yanmar, among others. Availability and compatibility vary by product; not every engine model from these manufacturers is covered.

A single-piston listing generally refers to one piston, while a piston kit or multi-piece set may include several pistons and, depending on the listing, pins and retaining clips. The word “kit” does not guarantee that piston rings, connecting rods, or other overhaul parts are included. Review the product description for the exact contents.

The correct size depends on the engine's cylinder bore condition and the repair specifications. An oversize piston may be required after a cylinder is machined to a larger diameter, but the correct oversize must be determined from the engine's service specifications and measured bore. Do not select an oversize piston based on the engine model alone.