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Bulb experts? Turn Signal 4157 bulb vs. 3157?

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Old 10-08-2001, 01:14 PM   #1
BatMobile
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Default Bulb experts? Turn Signal 4157 bulb vs. 3157?

I needed to change my turn signal indicator for the front right.

The bulb I took out was a part #4157. Yellow bulb with a white base (which was burnt)

The parts store replaced it with bulb #3157 and indicated that it was an acceptable replacement. Yellow bulb with a BLACK base.

It appears to be working.

Are there any bulb experts out there that know if there is a MAJOR difference in the bulbs that would warrant me removing this 3157 bulb ASAP before it damages something?

Thanks!

Neill
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Old 10-08-2001, 03:03 PM   #2
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Default Re: Bulb experts? Turn Signal 4157 bulb vs. 3157? (BatMobile)

Neill,
I do not know what the 4157 is, but this weekend three of
us changed ours out because we wanted white DRL's. The
original bulbs in all three were amber 27W/7W 3157's. We
replaced with clear 27W/7W 3157's.
You should be fine. :D
Ken

BTW - Those new wheels look good, Fikse's?


[Modified by MySea5, 1:05 PM 10/8/2001]
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Old 10-08-2001, 04:32 PM   #3
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Default Re: Bulb experts? Turn Signal 4157 bulb vs. 3157? (BatMobile)

i use white 3157, it looks much better now :cheers:
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Old 10-08-2001, 05:02 PM   #4
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Default Re: Bulb experts? Turn Signal 4157 bulb vs. 3157? (BatMobile)

OK...found some info on Sylvania's site...

This is in PDF format...
http://www.sylvania.com/prodinfo/auto/pdfs/s8spec.pdf

The 3157 and 4157 are different only in their longevity. The 4000 series is a new bulb containing Krypton gases and apparently have up to 4 times the longevity of the 3000 equivalents.

Oh well....just means I crawl under the car a few more times a year.

;):D

Neill
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Old 10-08-2001, 07:01 PM   #5
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Default Re: Bulb experts? Turn Signal 4157 bulb vs. 3157? (BatMobile)

Ooops, I fibbed to ya Neill. Just got home and looked.
The original bulbs I pulled were Sylvania 4157's. But, the bulbs we
used as a replacment are Sylvania 3157KLL (Krypton-Long Life) and
not on the web site. Go figure. I do know that all are 27/7's so we
should be safe.
I have seen some use the Hyper White 3157's at a higher wattage
with no problems.

Ken
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