This genuine OEM sourced replacement part is specially designed for use with Briggs and Stratton engines commonly installed on lawn and garden equipment. The purpose of a carburetor is to mix air and gas before the fuel mix goes to the engine. If the engine won't start and the tank is full of fresh fuel, or if the engine starts and then quickly dies, the carburetor is likely the problem. When replacing carburetor it is advised that you also replace carburetor gaskets to ensure the proper air-tight seal for optimum performance. Keep in mind this high-quality metal body component is sold individually. This Carburetor is in Engines.