Mercury Mariner Propeller Shaft Seal 4,5,6 HP 2 & 4 stroke Outboard Marine 9.9HP
8HP & 9.9HP Four Stroke serial number: 0P325500 through 1R279944. 4HP, 5HP & 6HP Four Stroke serial number: 0R067090 and up. 4HP & 5HP Two Stroke serial number: 9589154 - 0P016999.