Used with 3/8 - 16 drain and fill hole screw on all MerCruiser stern drives, Mercury and Mariner outboards except the Verado series.
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#66 in Automotive Replacement Engine Oil Drain Plugs
#33543 in Automotive
Product Description
LucaSng Marine Screw and Seal
Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 79953Q04 used with 3/8 - 16 drain/fill hole screw on all MerCruiser stern drives, Mercury and Mariner outboards *except the Verado series. * Helps prevent gear lube from leaking out and water from seeping in to the gear case causing serious damage. This is the non-magnetic plug screw version.
Product Description
LucaSng Marine Screw and Seal
Lower Unit Gear Lube Drain and Fill Hole Screw and Seal 79953Q04 used with 3/8 - 16 drain/fill hole screw on all MerCruiser stern drives, Mercury and Mariner outboards *except the Verado series. * Helps prevent gear lube from leaking out and water from seeping in to the gear case causing serious damage. This is the non-magnetic plug screw version.