A-B1797136-AI FLOAT-CARBURETOROne New Aftermarket Replacement Carburetor Float Fits Briggs & Fits Stratton Small Engines This carburetor float is a direct replacement Fits Briggs and Stratton (B&S) small engines used in lawn mowers, lawn tractors, snow blowers, and other outdoor power equipment. The float sits inside the carburetor assembly and actuates the needle valve to regulate fuel flow into the float bowl, maintaining the correct fuel level for consistent engine performance.