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A/C Panel Lamps

Posted: Fri Oct 17, 2008 8:28 am
by Scanman88GT
I did a search and came up empty-handed on this. I've got a few  burned-out bulbs out behind my A/C Heater Control panel in my 88GT.

Can anyone tell me what the part # is for these bulbs? Are they available at auto parts places or dealer only? I could probably snag some from the junkyard, but it's been raining lately and I'm sure the junkyard is one muddy mess right now.

Thanks,
Scanman88GT

A/C Panel Lamps

Posted: Sat Oct 18, 2008 2:02 pm
by acemccool
I could certainly be wrong but I want to say 186 size bulbs. They are similar in shape as the side marker turn signal ones but smaller.  I would just take one out and bring it with you to the parts store and compare with the ones on the rack.

A/C Panel Lamps

Posted: Sun Oct 19, 2008 1:06 am
by Bman Gtz
Either that, or just change them to led's, that's what I did with clear cavy knobs, looks great.

BMAN

A/C Panel Lamps

Posted: Sun Oct 19, 2008 1:42 pm
by Scanman88GT
I called my local GM dealer to see if he could give me a part # on them. He said that the bulbs were a # PC74. They're mounted in one of those bases that you push in, then turn 1/4 turn to lock.

I had thought that the bulbs were a part of the socket assembly and that you couldn't seperate the two. I also wasn't sure how many bulbs were behind there.

As it turns out, a plain old Wagner # 74 will work. These bulbs have the wedge-shaped bases and kind of snap into the sockets, similar to how the side marker bulbs fit into their sockets, only much smaller.

I had a couple of extras that I had snagged from the junkyard sitting in a container of miscellaneous hardware that I also scavenged over the years. Problem solved.