8M0204693 Mercury MerCruiser 268M0204693 Yellow Drain Plug Washer | Genuine Quicksilver OEM Part

Made of high quality material with rubber coated, prevent gear oil leaking. For use on the 3/8-16 drain/fill screw holes in outboard and stern drive gearcases.

Gearcase gear lube drain screw washer 830749 is rubber coated stainless steel that fits for 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.This is the exact seal for its gearcase drain, filler, and vent screws.

Change this every time you change your gearcase oil. It's designed to "crush" under torque so it's a one time use washer. Replacement gaskets for the Mercury's lower unit drain and vent plugs.