Edit: For 97-01 model years.
Not the illumination bulb but the one on top for to indicate the switch is on. Having a hard time finding the part number for that bulb. Anybody here know it?
It's this little guy here:


Thanks in advance!

 

Looks like that same bulb for the HVAC climate Control Panel. Pull it and see if it's the same. If so, it's part number L000PC74. Dealer should have them. $2.85


Can't locate my spare Aux Switch panel or I'd see for myself.

 

They're actually a little smaller. The illumination ones are the same size though.

 

Buy a fog lamp switch from O'reilly Auto Parts, switch bulbs, return the switch and get your money back.


http://www.oreillyauto.com/site/c/de...og+lamp+switch

 

My Owner's Manual says "Rocker Switch Lamp" is bulb type 37. I guess the illumination bulb would be bulb type 74 (larger bulb).


I searched everywhere and couldn't find this bulb type 37.


Let us know if you find one.

 

I don't actually need a replacement bulb. I'm looking for the part number so I can find a replacement LED version. I just repaired the fog light switch from the indicator bulb melting it so I want to use an LED now because they don't put off as much heat.

Here's a picture of the illumination bulb for the HVAC, the indicator bulb for the switch, and the illumination bulb with gel cap for the switch in that order in the pic:


The two on either side are the same I believe expect for the gel cap and the indicator bulb is just a tad smaller. I read that the HVAC are type 74 but I thought those were removable from the housing like in the gauge cluster? Perhaps the smaller one is type 37? I'm not sure anymore.

 

So this piqued my interest and I did some digging. It looks like 37/74 bulbs use the same mini wedge base, but the 37 is physically smaller than the 74. So you could potentially plug a 37 into a 74 and not have any issues, but a 74 into a 37 may run in to clearance problems. I suspect that would be the case with any of the switch lamps

I decided to order this type 74 mini. It may or may not work, but it only cost me $4 with shipping and I can use it for other stuff if this doesn't work out.

My other, more radical idea would be to figure out how to wire some 12v 3mm LEDs into the existing base.

I have a feeling over the next few years we are going to see a lot of "where can I get this bulb" questions as they start to burn out.

 

Just to clarify, the bulbs I have aren't made to be separated from the base unlike the ones in the gauge cluster. Could be different for different years but this is what I have:



The center one is from the gauge cluster which is a type 74 I believe. I don't have any of the bases around for comparison unfortunately. Just sharing in case it may help anyone out if they stumble upon this in the future.

Funny you should mention wiring in an LED because that's what I'm going to probably end up doing.

Edit: Just wanted to clarify that these two are different lights:



I could see that being confusing.

 

I don't think the indicator is considered to be a serviceable part but it appears to just be a 3mm "grain of wheat" style lamp. Here are some caps used wth those bulbs:
http://www.ebay.com/itm/30-pcs-Green...-/260761784097


and the bulbs with dimensions
http://www.ebay.com/itm/Grain-of-Wheat-Bulbs-20-pcs-3mm-Clear-12V-100mA-Mini-Bulbs-Lighting-Kits/400110358903?_trksid=p2047675.c100623.m-1&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D39107%26meid%3Dba23e067e1464cc08aa5249b6fc3e227%26pid%3D100623%26rk%3D3%26rkt%3D6%26sd%3D260761784097

 

So just a quick update:

I replaced the conventional indicator bulbs with LEDs.

Here's the defroster bulb which I used a 3v red LED to mix things up a bit:
Edit: this is actually a 2v bulb so I used the wrong resistor below. Probably should fix that later.


And the 390 ohm resistor I used to bring the voltage down so as no to fry the LEDs with 12v:
Edit: a 1k ohm resistor is what I should have used I think.


Used some heat shrink after to prevent any accidental shorts and as you can see the added resistors don't get in the way and don't look all that ghetto but who cares cause nobody gonna see them anyway.


And the final result:


They actually look a bit brighter in the pic then they do in person. The other bulbs were already replaced with LEDs as well and are much brighter than the originals which is nice and at least now my switches won't melt themselves with the new LEDs.