A fuel inlet is a connector that allows gasoline from the fuel line of an engine to pass through it into the carburetor. Once in the carburetor, the fuel mixes with air and passes into the cylinder, where it ignites to create power for the engine. Thus, the fuel inlet is attached on the one side the carburetor and to the fuel pipe, or line, on the other. This inlet is used in power tools such as lawn mowers, snowblowers, edgers, pressure washers, chippers, and generators. Periodically, since it is made partially of plastic, the fuel inlet will weather and crack so that it is no longer fuel tight. The main sign to watch out for with fuel inlets is gasoline leakage. This is always a dangerous situation. The user may have to remove the carburetor housing cover to determine whether the leak comes from the fuel line or the inlet valve. It is a good idea to replace each of these pieces at the same time. When choosing a replacement part for the fuel inlet, always use a genuine OEM replacement part like this one. This inlet is compatible with power tools made by Tecumseh, Briggs & Stratton, Toro, MTD, Lawn-Boy, and Cub Cadet.