GMC Yukon XL Fog Light Bulb Size
The GMC Yukon XL front fog light requires a 5202 or 12278 bulb size for optimal illumination. The replacement chart covers vehicle production years spanning 2015 to 2020 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Fog Light
| Years | Bulb Size |
|---|---|
| 2019-2020 | 5202 |
| 2016-2018 | 12278 |
| 2015 | 5202 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Single-filament halogen bulb with PG20-3 base. 12V, 24W. | 5202 |
| Philips part number. Single-filament halogen bulb with PG18.5d-3 base. 12V, 26W. | 12278 |