Category OMC Back O-Ring 311338 OMC Sterndrive Parts & Accessories Viewer:326 Item No: 311338 Similar fits No: OMC - 0311337 / 0777861 Sierra - 18-7105 Mallory - 9-76506 GLM - 80180 You May Also Be Interested In Impeller Housing Seal 324981 Adapter to Housing Gasket 328283 Connecting Rod Kit 13202-427-300 Piston Kit 09-776