A-B1801418-AI KIT-CHOKE SHAFTOne New Aftermarket Replacement Choke Shaft Kit Fits Briggs & Fits Stratton Small Gasoline Engines This carburetor choke shaft kit replaces the choke shaft assembly inside Fits Briggs & Fits Stratton carburetors. The choke shaft controls the choke valve, regulating the air fuel mixture during cold engine startup to ensure reliable starting and smooth operation. It is a common repair part for carburetors with a broken, worn, or stuck choke shaft on