A-B1593393-AI CARBURETOROne New Aftermarket Replacement Carburetor Fits Briggs and Stratton (B&S) V Twin Intek Engines This aftermarket replacement carburetor Fits Briggs and Stratton (B&S) V Twin Intek small engines commonly used on riding lawn mowers, lawn tractors, and zero turn mowers. The carburetor controls the fuel and air mixture delivered to the engine, and is a direct replacement when the original becomes clogged, worn, or fails to deliver proper fuel flow.