Bulb types · Signal / marker
3757A bulb
Catalog code 3757A — appears in 431 model-year × position rows. Confirm against your owner’s manual before swapping.
Code3757A
FamilySignal / marker
Fitment rows431
Top positions12
Replacement options
Halogen, LED, and HID picks for 3757A. Prices and availability come from Amazon — confirm fitment for your vehicle before buying.
LED
Vehicode 3757 Amber Bulbs
Check Price
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LED
Phinlion Amber 3757 Light Bulb
$14.99
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Halogen
SYLVANIA 3157 Long Life Miniature Bulb, (Contains 2 Bulbs)
$9.34
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Halogen
Methuker 2PCS Car 3157 Bulb,12V P27-7W 3000K White,Long L...
$6.29
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Halogen
Flosser Incandescent 3757NA 3757A T25 27/7W 375701 Amber ...
$9.99
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Halogen
SYLVANIA 3757A Long Life Miniature Bulb, (Contains 10 Bulbs)
$21.59
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Halogen
GM Genuine Parts 3757A (01999367) Parking and Turn Signal...
$4.78
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Halogen
SYLVANIA - 3457A Long Life Miniature - Amber Bulb, Ideal ...
$7.25
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Halogen
4-Pack Red 3157 Bright Light Bulbs Car Auto Signal Turn B...
$12.99
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Halogen
4PCS 12V PY27/7W 3757AK Automotive Turn Signal Lamp Bulbs
$12.90
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Where 3757A 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 |
|---|---|
| Turn Signal Light Bulb Front | 131 |
| Parking Light Bulb | 112 |
| Turn Signal Light Bulb Rear | 69 |
| Side Marker Light Bulb Front | 30 |
| Daytime Running Light Bulb | 14 |
| Turn Signal Light Bulb Rear(Hatchback) | 12 |
| Turn Signal Light Bulb Front(Base) | 11 |
| Parking Light Bulb(Base) | 10 |
| Parking Light Bulb(Compare to original - Option 2) | 6 |
| Turn Signal Light Bulb Front(with HID headlights) | 6 |
| Turn Signal Light Bulb Rear(C SRT8) | 6 |
| Turn Signal Light Bulb Rear(Convertible) | 5 |
Makes that use 3757A most
Based on catalog fitment density — not a claim that every trim uses this bulb.
- Jeep86
- Chrysler78
- Cadillac71
- Dodge54
- Chevrolet44
- Ford41
- Buick24
- GMC24
- Mazda5
- Lincoln4
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
*3157 can replace 3156, but 3156 cannot replace 3157