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Bulbs - 4157 LL vs NAK ?

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For my '03 the manual calls for 4157 NAK bulbs in the tail lights for the park and turn. All I can find locally are 4157 LL, do I need top special order the NAK bulbs ? Thanks- Steve
 
The NAK designation stands for "Natural Amber Krypton" Long Life. It's odd to see an amber bulb listed in the tail light position of a full red lens taillight.

Here are some specs for comparison/contrast:

#4157NAK NATURAL AMBER KRYPTON LONG LIFE MINIATURE BULB PLASTIC WEDGE BASE - 12. 8/14. 0 Volt 2. 23/0. 59 Amp Natural Amber Krypton Filled Long Life S-8, Plastic Wedge Base, 24/2. 2 MSCP C-6/C-6 Filament Design, 4,000/10,000 Average Rated Hours, 2. 09" Maximum Overall Length.

#41567 NATURAL AMBER LONG LIFE MINIATURE BULB PLASTIC WEDGE BASE - 12. 8/14 Volt 2. 23/0. 59 Amp Natural Amber Long Life S-8, Plastic Wedge Base, 4,000/10,000 Hour

Looks like either should work.
 
<TABLE border=0 cellSpacing=2 cellPadding=0 width=780><TBODY><TR><TD class=cellcenter bgColor=#e1e4ee width=37>19




</TD><TD class=cellcenter bgColor=#e1e4ee width=94>4157K (LL) </TD><TD class=cellcenter bgColor=#e1e4ee width=89>Wedge (2) </TD><TD class=cellcenter bgColor=#e1e4ee width=102>W2. 5x16q </TD><TD class=cellcenter bgColor=#e1e4ee width=55>12. 8 </TD><TD class=cellcenter bgColor=#e1e4ee width=59>2. 23 </TD><TD class=cellcenter bgColor=#e1e4ee width=55>32 </TD><TD class=cellcenter bgColor=#e1e4ee width=73>C-6 </TD><TD class=cellcenter bgColor=#e1e4ee width=85>4,000 </TD><TD class=cellcenter bgColor=#e1e4ee width=40>27 </TD><TD class=cellcenter bgColor=#e1e4ee width=69>
[FONT=Verdana, Arial, Helvetica, sans-serif]#ad
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</TD></TR><TR><TD class=cellcenter bgColor=#e1e4ee width=37></TD><TD class=cellcenter bgColor=#e1e4ee width=94></TD><TD class=cellcenter bgColor=#e1e4ee width=89></TD><TD class=cellcenter bgColor=#e1e4ee width=102></TD><TD class=cellcenter bgColor=#e1e4ee width=55>14 </TD><TD class=cellcenter bgColor=#e1e4ee width=59>0. 59 </TD><TD class=cellcenter bgColor=#e1e4ee width=55>3 </TD><TD class=cellcenter bgColor=#e1e4ee width=73>C-6 </TD><TD class=cellcenter bgColor=#e1e4ee width=85>10,000 </TD><TD class=cellcenter bgColor=#e1e4ee width=40></TD><TD class=cellcenter bgColor=#e1e4ee width=69></TD></TR><TR><TD class=cellcenter bgColor=#eeeeee width=37>20




</TD><TD class=cellcenter bgColor=#eeeeee width=94>4157NAK (LL) </TD><TD class=cellcenter bgColor=#eeeeee width=89>Wedge (2) </TD><TD class=cellcenter bgColor=#eeeeee width=102>W2. 5x16q </TD><TD class=cellcenter bgColor=#eeeeee width=55>12. 8 </TD><TD class=cellcenter bgColor=#eeeeee width=59>2. 23 </TD><TD class=cellcenter bgColor=#eeeeee width=55>24 </TD><TD class=cellcenter bgColor=#eeeeee width=73>C-6 </TD><TD class=cellcenter bgColor=#eeeeee width=85>4,000 </TD><TD class=cellcenter bgColor=#eeeeee width=40>27 </TD><TD class=cellcenter bgColor=#eeeeee width=69>
[FONT=Verdana, Arial, Helvetica, sans-serif]#ad
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</TD></TR><TR><TD class=cellcenter bgColor=#eeeeee width=37></TD><TD class=cellcenter bgColor=#eeeeee width=94></TD><TD class=cellcenter bgColor=#eeeeee width=89></TD><TD class=cellcenter bgColor=#eeeeee width=102></TD><TD class=cellcenter bgColor=#eeeeee width=55>14 </TD><TD class=cellcenter bgColor=#eeeeee width=59>0. 59 </TD><TD class=cellcenter bgColor=#eeeeee width=55>2. 2 </TD><TD class=cellcenter bgColor=#eeeeee width=73>C-6 </TD><TD class=cellcenter bgColor=#eeeeee width=85>10,000 </TD><TD class=cellcenter bgColor=#eeeeee width=40></TD></TR></TBODY></TABLE>

Sylvania's website has more info - Looks like the candle power on the LL vs. NAK is a bit different - the LL is brighter.

OSRAM SYLVANIA: Sylvania Online Automotive Lighting Catalog

:eek: Silly me - It's because one is Amber... one is clear...
 
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