A-B1691727-AI VALVE-THROTTLEOne New Aftermarket Replacement Throttle Valve Fits Briggs & Fits Stratton Small Engines This aftermarket replacement throttle valve (Valve Throttle) Fits Briggs & Fits Stratton small engines used in lawn mowers, lawn tractors, and outdoor power equipment. The throttle valve is installed in the carburetor assembly and controls the flow of air and fuel mixture entering the engine, directly regulating engine speed and power output. A worn or damaged