The 6 Pack Rocker Valve Cover Gaskets by Fremont small engine parts are specifically designed to be compatible with Briggs and Stratton engines. These gaskets are suitable for gas-powered lawn mowers with a horsepower range of 13-18.5HP. With a durable construction and a model designed for valve cover gaskets, this product ensures a reliable and secure fit for your lawn mower. Ideal for maintenance and repair, this 6 pack provides a convenient solution for ensuring your lawn mower continues to operate efficiently.