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Thread: Bulbs - 4157 LL vs NAK ?

  1. #1

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    Bulbs - 4157 LL vs NAK ?

    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

  2. #2

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    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.
    Bruce Johnson
    Veritatem Suppeditare
    ___________________
    '02 Silver Bellied Atlantic Blue 2500 Laramie SLT +, QC, SWB, 5.9 CTD, Auto, 4x4, 3.54 Trac-Loc, Michelin X LT2 265/75/16, KC DayLighters, Smittybilt chrome grill guard, Westin Side Steps. 168,218+ miles

    2010 Arctic Fox 25S

  3. #3

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    <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>








    </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>








    </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

    Silly me - It's because one is Amber. . . one is clear. . .
    Last edited by PBJ2500CTD; 12-13-2009 at 01:52 PM.
    Bruce Johnson
    Veritatem Suppeditare
    ___________________
    '02 Silver Bellied Atlantic Blue 2500 Laramie SLT +, QC, SWB, 5.9 CTD, Auto, 4x4, 3.54 Trac-Loc, Michelin X LT2 265/75/16, KC DayLighters, Smittybilt chrome grill guard, Westin Side Steps. 168,218+ miles

    2010 Arctic Fox 25S

  4. #4

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    4157 will work just fine

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