Check the listing for details. TWO Volvo Penta Exhaust Riser Elbow OMC 4.3 5.0 5.7 5.8 L 305 350 v6 v8 manifold. Condition: New. Listed at 398.00 USD. TWO New 7.8 inch tall exhaust riser for Volvo Penta and OMC marine gas engines 1992 and newer. These risers comes with a new gaskets, bolts and plugs. Accepts all original factory accessories and fittings. These are identical to the factory riser. Left and right are the same. Check the height and/or the part number of your old ones BEFORE ordering. Volvo offered a 10.3 inch and 11.3 tall riser. Make sure yours is 7.8 or sometimes called 8 inch riser. Cross ReferencePart Number Volvo Penta3855270-9, 3863061 OMC913784, 3855270, 3850456 Osco Motors50456, 5045A Barr MarineOMC-20-913784 Sierra Marine18-1909-1 Aqua Power5711 GLM Products51330TWO New 7.8 inch tall exhaust riser for Volvo Penta and OMC marine gas engines 1992 and newer. These risers comes with a new gaskets, bolts and plugs. Accepts all original factory accessories and fittings. These are identical to the factory riser. Left and right are the same. Check the height and/or the part number of your old ones BEFORE ordering. Volvo offered a 10.3 inch and 11.3 tall riser. Make sure yours is 7.8 or sometimes called 8 inch riser. Cross ReferencePart Number Volvo Penta3855270-9, 3863061 OMC913784, 3855270, 3850456 Osco Motors50456, 5045A Barr MarineOMC-20-913784 Sierra Marine18-1909-1 Aqua Power5711 GLM Products51330