BARR MC-1-860235 Mercruiser 4 Cylinder 181cu 140HP 3.0L Vortec Head Exhaust Manifold Direct replacement Vortec head style log exhaust manifold Suitable for 1990 and up Mercuiser 4 cylinder 181cu 140HP 3.0L and 3.0LX Replaces Mercruiser part 860235A04 BARR manifolds include plugs, gaskets and mounting hardware to mount riser