A-B1710250-AI GASKET-EXHAUSTOne New Aftermarket Replacement Exhaust Gasket Fits Briggs and Stratton Small Engines This aftermarket replacement exhaust gasket seals the joint between the cylinder head and the exhaust system on Fits Briggs and Stratton (B&S) small gasoline engines. A properly sealing exhaust gasket prevents combustion gases from escaping at the exhaust port, maintaining engine efficiency and protecting surrounding components from heat damage. This gasket is used