Used passenger side (right hand) taillight housing for the Mercury Cougar.
*NOTE* Need help diagnosing a Cougar turn signal problem? Victor Yarberry is the world’s most knowledgeable expert on the subject. Vic has owned Cougars since the 1970's and is the designer of all of our solid state sequential systems. There is no question he cannot answer! Here is a link to a great source of information on the subject.
Thinking about adding some LED taillight bulbs to your car? Here is great little video that shows the performance of LEDs and traditional bulbs side by side so that you can make an informed decision.