I'm not sure if they are the same bulbs but I got "extra bright"
reversing bulbs from Dan Stern (danielsternlighting.com) he can likely
get you any bulb you need.

Allan

Tom Stone <tstone8359@AOL.COM> writes:

> I have 50w bulbs in the brake light sockets on my '91 Carat. �They have worked perfectly and provide the additional brightness I wanted. �However, one has burned out. �I pulled the bulb and can find no part numbers other than the 12v50w stamped on the base. �A trip to Advance Auto and Auto Zone was futile. �And I have had no luck finding them online.
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> Does anyone have a part number/source for these bulbs? �I also have high wattage bulbs in other locations so should get the part numbers for those as well. �Turn signal, parking, backup.
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> Tom
>
> Illinois, soon to be Ohio�
>

-- 
1991 Vanagon GL