Yes there is on my 2021, they're called crush washers I believe and act as a gasket. You are supposed to replace them when they get worn. Some people recommend replacing them every oil change, I think that may be overkill..
Should be a copper crush washer on the plugI did the 500 mile oil change on my second Gen Slingshot and was wondering if the drain plug has a metal washer on it? The reason I ask is I found one in the drain pan but the drain pan is used by someone else more frequently than me and I don't recall seeing a metal washer on the plug.
Y Reuse mine on my Wing too ! 175000 KmMy goldwings had crush washers. I never replaced one and my last wing had 101,000 miles. Never had a leak. Just don't crush it! Lol