Bulb types · Signal / marker
4157NAK bulb
Catalog code 4157NAK — appears in 24 model-year × position rows. Confirm against your owner’s manual before swapping.
Code4157NAK
FamilySignal / marker
Fitment rows24
Top positions4
Replacement options
Halogen, LED, and HID picks for 4157NAK. Prices and availability come from Amazon — confirm fitment for your vehicle before buying.
LED
Phinlion Amber 3757 Light Bulb
$14.99
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Halogen
SYLVANIA 7443 Long Life Miniature Halogen Bulb
$7.25
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Halogen
SYLVANIA - 4157NA Long Life Miniature - Amber Bulb, Ideal...
$7.25
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Halogen
Kadiby 2 Pack 3157NA 4157NA Bulb 12v 27/7w Parking/Turn S...
$7.15
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Halogen
Kadiby 2 Pack 3157 4157 Bulb, P27/7W Brake/Tail/Turn Sign...
$7.15
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Halogen
SYLVANIA 3157 Long Life Miniature Bulb, (Contains 2 Bulbs)
$9.34
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Halogen
lodfGL 4157NAK 3157NA 3157 Amber Front Turn Signal Light ...
$8.99
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LED
SEALIGHT Turn Signal Light Bulbs, 3157 LED Bulb Amber, 70...
$19.99
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LED
PHINLION 3157 4157 LED Turn Signal Bulbs, Amber Yellow, 2...
$17.99
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Where 4157NAK shows up
Ranked by how often this code is tied to a lighting position across model years — a practical clue for dual-beam vs single-beam and fog vs headlamp confusion.
| Position | Fitments |
|---|---|
| Brake Light Bulb | 7 |
| Tail Light Bulb | 7 |
| Turn Signal Light Bulb Rear | 5 |
| Side Marker Light Bulb Rear | 5 |
Makes that use 4157NAK most
Based on catalog fitment density — not a claim that every trim uses this bulb.
- Ford24
Cross-reference notes
Related codes from the Autotk cross-reference table. Direction matters — some bulbs can replace others one-way only.
*3157 can replace 3156, but 3156 cannot replace 3157