Customer Questions and Answers for Check Valve by Walbro

A small, gas-powered engine will rely on a mix of air and fuel to operate. The way that this blend of air and fuel is delivered into the engine is more complex than many realize. The air is pulled through the system and run through a filter before making its way to the carburetor and then the cylinder. The air passes through a system that includes a check valve. This is a valve that rests inside an air purge body that relies on a bulb to pull fuel from the tank. This sends it to the pump and into the carb. This OEM replacement part ships individually and will require a screwdriver to make the repair. This replacement check valve is designed to work with a variety machines made by Walbro and MTD, among others. It works with tractors, and many other gas-powered machines.