OEM Mercury / MerCruiser vent or drain screw with seal 10-79953Q04
Lower unit gear lube vent or drain and fill hole screw with seal 10-79953Q04 is used with 3/8-16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. This is the non-magnetic plug screw version.
OEM Mercury / MerCruiser vent or drain screw with seal 10-79953Q04
Lower unit gear lube vent or drain and fill hole screw with seal 10-79953Q04 is used with 3/8-16 drain/fill hole screw on all MerCruiser sterndrives, Mercury and Mariner outboards except the Verado series. This is the non-magnetic plug screw version.
