The Kawasaki 13029-0028 Lawn Mower Engine Piston 0.50mm L helps convert combustion pressure into mechanical movement that powers the engine. Installed inside the cylinder, the piston moves up and down as the engine operates, transferring force through the connecting rod to the crankshaft. This oversized piston is designed for compatible engine applications requiring a 0.50mm specifica... https://www.wholetoolbox.com/kawasaki-13029-0028-lawn-mower-engine-piston-0-50mm-l/13029-0028.html