what does the check engine lightbulb look like? on 1997 Mercury Cougar

Check engine light doesnt come on and needs to be replaced what does it look like

Asked by for the 1997 Mercury Cougar
Just stop at any Ford/Mercury dealer and pick one up. They can find it easily in their parts catalogue, it cost only few bucks and I don't think other part stores will be able to locate it for you.