Category OMC Back O-Ring 311338 OMC Sterndrive Parts & Accessories Viewer:539 Item No: 311338 Similar fits No: OMC - 0311337 / 0777861 Sierra - 18-7105 Mallory - 9-76506 GLM - 80180 You May Also Be Interested In Upper Gear Housing 0984518 Cover Plate Gasket 327223 Choke Cable 0487-002 Complete Gasket Kit PWSE-951CW-FU