2023 GMC Sierra 3500HD Bulb Sizes
2023 GMC Sierra 3500HD stores 13 bulb-chart rows across 13 lighting positions.
Match the designation printed on the bulb or housing. Stored rows are chart records, not a count of lamps on one vehicle.
Complete bulb chart
| Position | Designation |
|---|---|
| Fog Light Bulb Front | 5202 LED |
| Headlight Bulb High Beam and Low Beam | D5S |
| Back Up Reverse Light Bulb | 921 |
| Brake Light Bulb | 7444 |
| Center High Mount Stop Light Bulb | 921 |
| License Plate Light Bulb | 2825 |
| Parking Light Bulb | 7443 |
| Side Marker Light Bulb Rear | 194NA |
| Tail Light Bulb | 7444 |
| Turn Signal Light Bulb Front | 7443A |
| Turn Signal Light Bulb Rear | 7444NA |
| Trunk or Cargo Area Light | 921 |
| Vanity Mirror Light Bulb | 6612F |
Lighting positions
- Fog Light Bulb Front5202 LEDStored position · LED designationView on Amazon
- Headlight Bulb High Beam and Low BeamD5SStored position · HID capsuleView on Amazon
- Back Up Reverse Light Bulb921Stored position · Halogen designationView on Amazon
- Brake Light Bulb7444Stored position · Halogen designationView on Amazon
- Center High Mount Stop Light Bulb921Stored position · Halogen designationView on Amazon
- License Plate Light Bulb2825Stored position · Halogen designationView on Amazon
- Parking Light Bulb7443Stored position · Halogen designationView on Amazon
- Side Marker Light Bulb Rear194NAStored position · Halogen designationView on Amazon
- Tail Light Bulb7444Stored position · Halogen designationView on Amazon
- Turn Signal Light Bulb Front7443AStored position · Halogen designationView on Amazon
- Turn Signal Light Bulb Rear7444NAStored position · Halogen designationView on Amazon
- Trunk or Cargo Area Light921Stored position · Halogen designationView on Amazon
- Vanity Mirror Light Bulb6612FStored position · Halogen designationView on Amazon
Choose a lighting position to see the stored designation.
Replacement check
Read the number on the installed bulb or the housing. Confirm whether the headlights are halogen, HID, or an LED assembly. H11 and H11B are different. 9005 and 9006 are different. This page does not substitute a nearby designation to fill the product list.
Year variations
- Halogen low beam stays H11 across the stored years.
Questions
What fog light bulb does the GMC Sierra 3500HD use?
2023 stores 5202 LED for fog lights.
What turn-signal bulb does the GMC Sierra 3500HD use?
Halogen-configuration turn signals in 2023 store 7443A, 7444NA. An LED-headlight configuration can list LED instead of these bulbs.
What brake-light bulb does the GMC Sierra 3500HD use?
Halogen-configuration brake lights in 2023 store 7444.
What does an LED record mean?
A stored part of LED means that configuration is recorded as an LED assembly. It is not a replaceable halogen bulb, and this page does not sell an LED conversion as the OEM bulb for that assembly.
How are HID bulbs handled?
D-series capsules such as D1S or D3S are HID. Exact catalog matches for those positions use HID products, not halogen bulbs.
Can I substitute a nearby bulb number?
No. H11 and H11B stay different. 9005 and 9006 stay different. This page matches the stored designation and does not swap in another bulb to fill the product list.
Does a catalog match guarantee the bulb fits?
A designation match means the product is filed under that bulb number and technology. It does not prove the lamp, socket, or vehicle configuration. Check the bulb in the housing before ordering.
How do I verify the replacement?
Read the number on the bulb or the housing, confirm whether the headlights are halogen, HID, or LED, and match that designation. Position names that say “with halogen headlights” or “with LED headlights” are separate configurations.
Does the GMC Sierra 3500HD bulb chart change by year?
Bulb rows are stored for 16 years, 2008–2023. This page shows 2023. Choose another year to see that chart. Years are not collapsed into one bulb list.
What does the chart store for back up reverse light bulb?
2023 stores 921 for Back Up Reverse Light Bulb.
What does the chart store for center high mount stop light bulb?
2023 stores 921 for Center High Mount Stop Light Bulb.
What does the chart store for license plate light bulb?
2023 stores 2825 for License Plate Light Bulb.
What does the chart store for parking light bulb?
2023 stores 7443 for Parking Light Bulb.
What does the chart store for side marker light bulb rear?
2023 stores 194NA for Side Marker Light Bulb Rear.
What does the chart store for tail light bulb?
2023 stores 7444 for Tail Light Bulb.
What does the chart store for trunk or cargo area light?
2023 stores 921 for Trunk or Cargo Area Light.