Replace for GM Cast Iron 4.3L V6 Marine 4bbl Intake Manifold, OMC Merc 855806

Replace for GM Cast Iron 4.3L V6 Marine 4bbl Intake Manifold, OMC Merc 855806

Replace for GM Cast Iron 4.3L V6 Marine 4bbl Intake Manifold, OMC Merc 855806