This authentic OEM replacement carburetor gasket is compatible with a wide range of small engine lawn appliances. A carburetor gasket acts a seal, which is incredibly important because a carburetor is responsible for mixing a balance of oxygen and fuel for combustion. If fuel or air are leaking from the carburetor, the engine will not combust properly. Gaskets commonly break down because of heat and pressure. This gasket sits very close to where combustion takes place, and as the engine heats up, it can warp or break under pressure. A tell-tale sign of a blown gasket is if the carburetor is not working properly. Keep an eye out for unusual vibrations, slow starts, idling, over-heating, and backfires. To repair the gasket, you will need access to the carburetor. The difficulty level will depend entirely on what appliance you are repairing, so be sure to follow the user's manual. This part will work with MTD, Toro, Briggs & Stratton, Craftsman, and Tecumseh engines and is ideal for repairing lawn tractors, mowers, log splitters, generators, and any other carburetor made by those brands. This replacement gasket comes from the original manufacturer and ships independently.