12-8M0187157 - SEAL-BLUE, Sold Individually

Gearcase Gear Lube Drain Screw Washer 12-8M0187157 - Composite - Blue - For Mercury and Mariner Outboards and MerCruiser Stern Drives

Keep spares on hand to assure placement after changing gear lube in gearcase

Always double check to make sure the washer has been secured when reinstalling the drain screw. Water could infiltrate the gearcase without it and cause catastrophic damage to the gearcase.

For use on the 3/8-16 drain/fill screw holes in outboard and stern drive gearcases.

Blue, composite gearcase gear lube drain screw washer 12-8M0187157 fits Mercury and Mariner outboards and all MerCruiser stern drives with 3/8-16 gearcase drain/fill screw holes. Always double check to make sure the washer has been secured when reinstalling the drain screw. Water could infiltrate the gearcase without it and cause catastrophic damage to the gearcase. Keep spares on hand to assure placement after changing gear lube in gearcase. See your owner's manual or service manual for specific applications and replacement instructions.