25-32509 O-RING
Genuine Mercury Marine Part for Mercruiser Engines
O-Ring as found on Mercruiser Blue Plastic Drain Plugs 22-806608A1
These are the .489" x .070" to fit the older drain plugs. If the plugs have been replaced since 2018, use pn 25-26802.
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