Bulb types · Interior
1003 bulb
Catalog code 1003 — appears in 19 model-year × position rows. Confirm against your owner’s manual before swapping.
Code1003
FamilyInterior
Fitment rows19
Top positions1
Replacement options
Halogen, LED, and HID picks for 1003. Prices and availability come from Amazon — confirm fitment for your vehicle before buying.
Halogen
CEC Industries 1003 Halogen Light Bulb
$6.90
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LED
PA LED Purple 1003 Automotive Bulb
Check Price
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LED
Melphan-Auto 1156 Bulb LED - Reverse Light
$7.99
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LED
Melphan-Auto 1156 Bulb Reverse Light, Led 1141 1003 7506 ...
$9.99
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LED
Antline 1156 1141 1003 7506 BA15S LED Bulbs Xenon White 2...
$14.84
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LED
Antline 1156 1141 1003 7506 BA15S LED Bulbs Warm White/Ye...
$16.19
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Halogen
Kadiby 12 Pack 1141/1003 Bulb Rv Camper Interior S25 12v ...
$11.95
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Halogen
SYLVANIA 1003 Basic Miniature Bulb, (Contains 10 Bulbs)
$10.14
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LED
Heifymi 1156 1141 1003 7506 BA15S LED Bulb,12V-24V for RV...
$9.99
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LED
Efoxcity 12V 1156 10 Pack Bright 1156 1141 1003 50-SMD Wh...
$9.99
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LED
12V 1156 1141 7506 1003 P21W BA15S LED Bulbs Warm White 2...
$12.59
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Where 1003 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 |
|---|---|
| Courtesy Light Bulb(Compare to original - Option 1) | 19 |
Makes that use 1003 most
Based on catalog fitment density — not a claim that every trim uses this bulb.
- Chevrolet19
Cross-reference notes
Related codes from the Autotk cross-reference table. Direction matters — some bulbs can replace others one-way only.