what mm is the dome light in a 06 xb? i think its 31mm?

 

that *sounds* right... I just took mine to checker and matched it as best i could...

what are you trying to do? just replace?

 

Yes it is, I believe the festoon bulb number is 3175.

 

yea im replacing with a led but they dont have numbers just sizes.

 

Check out one of the sponsors, LEDdomelights. Two people I know have them and like them alot. I am thinking about getting one myself, although I might go a little cheaper and just order my LED dome light also lol.