Which colour bulb for rear Indicators? - Alfa Romeo Forum
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(Post Link) post #1 of 5 Old 20-08-16 Thread Starter
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Which colour bulb for rear Indicators?

I know they're P21W as opposed to PY21W in the front, but this only defines base and brightness.

Are they P21W amber or P21W clear?
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P21W is a clear bulb.
PY21W is a Yellow bulb.

The "Y" is the colour.
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Thanks Dave,
I figured it mattered because you can get Amber P21W

looked on Osram website... which lists the rears as PY21W
owner manual says rears are P21W

now im confused, which is it?
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Actually you are correct!
"PY21W" have offset pins, "P21W" have straight pins.
But I'm sure the idea of that is so that you fit the correct colour and don't put a clear bulb where and amber one should be.

Doesn't directly answer your question, but if the rears take a P21W bulb, then it should be clear.
Think you'll have to whip one to check the base.
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Quote:
Originally Posted by David C View Post
Actually you are correct!
"PY21W" have offset pins, "P21W" have straight pins.
But I'm sure the idea of that is so that you fit the correct colour and don't put a clear bulb where and amber one should be.

Doesn't directly answer your question, but if the rears take a P21W bulb, then it should be clear.
Think you'll have to whip one to check the base.
For everyones info they are Amber PY21W

I pulled the pair this evening and renewed due to the amber coating bubbling off.
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