Briggs & Stratton Briggs And Stratton Gasket-Cylinder Head 807986 Genuine OEM. This is a Genuine OEM Briggs & Stratton part. Briggs & Stratton Briggs And Stratton Gasket-Cylinder Head 807986 Genuine OEM... - Briggs & Stratton Briggs And Stratton Gasket-Cylinder Head 807986 Genuine OEM.