Briggs & Stratton 808392 Valve Gasket Set Replaces 807990/807668 Briggs & Stratton 808392 Genuine Briggs & Stratton Valve Gasket Set Fits Most 303400, 303700, 350400, 294000, 290000 Horizontal/Vertical Briggs & Stratton Engines Replaces Old Briggs # 807990, 807668