Originally Posted by MMZ_TimeLord

My apologies Boiler, I've pulled one of mine and measured it. It is 39mm. I am looking at the bulb and it is this one from superlumination's festoon section



I think originally I tried a 36mm, but it came up short or loose in the plastic housing as the factory bulb is 37mm (1 15/32") from tip to tip. Where as the LED bulb I have is 39mm (1 17/32"). It does stretch out the plastic 'fingers' a bit, but is secure and works perfectly.

So, 36mm should work, but if other people have had a slightly different part and the plastic 'fingers' are closer than mine by 3mm or 4mm, then a 32mm would in fact be correct. (European part differences?)

Can you verify this with yours out and measure it and the holder?