The Briggs & Stratton 792307 Piston Assembly moves inside the engine cylinder to help convert combustion pressure into mechanical power. It works with the connecting rod and other internal engine components to support the engine's operating cycle. This replacement assembly can be used when the original piston is worn or damaged and requires repair. Check your engine model and parts di... https://www.wholetoolbox.com/briggs-stratton-792307-piston-assembly/792307.html