A-B1690577-AI SEAT-INLETOne New Aftermarket Replacement Carburetor Inlet Seat Fits Briggs and Stratton (B&S) Small Gasoline Engines This aftermarket replacement carburetor inlet seat (seat inlet) fits in the needle valve seat bore of Fits Walbro LMT gravity fed carburetors used on Fits Briggs and Stratton OHV small engines. The pressed in metal seat seals against the float needle valve to regulate fuel flow into the carburetor float bowl a worn or damaged seat causes fuel