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
Sierra's 21 micron filters are over 90% efficient at removing particles as small as 21 micron, and flow at 90 GPH to feed even the hungriest motor. Ethanol-blended fuel absorbs more water and loosens more particulates than regular fuel
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