Gear case gear lube drain screw washer 8M0058391 is rubber coated stainless steel that fits Mercury and Mariner outboards and all MerCruiser sterndrives with 3/8-16 gear case drain/fill screw holes. Always double check to make sure the washer has been secured when reinstalling the drain screw. Water could infiltrate the gear case without it and cause catastrophic damage to the gear case. Keep spares on hand to ensure placement after changing gear lube in gear case. See your owner's manual or service manual for specific applications and replacement instructions.
Keep spares on hand to ensure placement after changing gear lube in gear case
Always double check to make sure the washer has been secured when reinstalling the drain screw as water could infiltrate the gear case without it and cause catastrophic damage to the gear case
For use on the 3/8-16 drain/fill screw holes in outboard and sterndrive gear cases
Water could infiltrate the gear case without it and cause catastrophic damage to the gear case
Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive