Bulb name

All the bulb has a specific name. ie H3, H4 and so on.

But what is the name of the bulb in the dash instrument?

Why should I know that? Beacuse I shall buy new one i a difrent colour. And for that I need to know the name of the bulb.
http://www.impex-corp.co.jp/Motorcycle_parts/AUTOMOBILE_CGC_clear/LARGE/SPARE_BULB/B-06_T20_RED.jpg

I hope you understand my poor english och my question.

// R

Bulb Is A # 194

Bulb Is A # 194

I tought this bulb is a T10 or T5...

This tells it all
www.avigex.ca/xport/lamps.jpg
...but following Ranchen's find, I'd bet on his solution. THere is a lot of "copy" and "paste" in GM manual and they can have taken a page from the LuminaVan manual "as is" and forgot about the nice pink lighting of the Transport....

The bulb has name "W5W" with "T-10" socket.