Genuine Mercury Marine Part for Mercruiser Engines
O-Ring as found on Mercruiser Blue Plastic Drain Plugs 22-8M0119211
These are the .424" x .103" to fit the newer drain plugs. If the plugs have been replaced before 2018, use pn 25-32509.
If you are unsure of the application, please enter the make, model & serial number information in the comments section of the checkout, or contact us