Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 8M0058389 is used with 3/8 - 16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series
If worn or damaged duckbill valves have created a loss of vacuum integrity in a VacuFlush toilet system SeaLand duckbill valves to make the system work like new
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