Third brake light bulb.

[Lee S.]

I need a new bulb for the third brake light (the one in the rear window) for my '86 240DL. My local Auto Zone has no listing for this bulb. Is this a Volvo dealer only item?? I hate going to those gougers for anything if I can get it elsewhere.
BTW, my car turned 250,000 miles this past weekend and is going strong.

Thanks,
Lee S.

[chas1937]

Hi according to volvo book its 12v21w for high level light