Category OMC Back Screw 331979 OMC Sterndrive Parts & Accessories Viewer:646 Item No: 331979 Similar fits No: OMC - 0331979 / 0777860 Sierra - 18-3133 Mallory - 9-48218 GLM - 22323 You May Also Be Interested In Cylinder Head Gasket 327795 Bushing 328754 PIN Dowel - Without Hole 17-43044 Nut, Flange 95717-12300