This is a cylinder head gasket that is located between the cylinder head and the engine block on many types of lawn and garden equipment. It is responsible for sealing the internal combustion process. It prevents oil and coolant from mixing together while each moves to the cylinder head from the engine block. If the cylinder head gasket is broken or damaged, it can cause fouled spark plugs, white smoke, milky white oil, leaking coolant, or an overheating engine.Gaskets can crack or wear out over time, which requires the parts to be replaced. Some of the tools needed to make the replacement include a gauge, socket driver, Torx screwdriver, nut driver, screwdriver, torque wrench, hex bit, and spark plug wrench. Make sure to wear work gloves and do the replacement with the tools on a flat surface.This cylinder head gasket is an authentic OEM replacement component that is sourced directly from the manufacturer. It is sold as an individual part. The head gasket is designed for use with lawnmowers, string trimmers, tillers, edgers, log splitters, and wood chippers created by Cub Cadet, Craftsman, and MTD.