GMC Yukon Turn Signal Bulb Size
GMC Yukon front and rear turn signal bulbs utilize 7444NA, 7440NA, 4157NA, and 7443 bulb sizes across multiple generations. The replacement chart covers 1992 through 2023 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Front Turn Signal
| Years | Bulb Size |
|---|---|
| 2023 | 7444NA |
| 2018-2019 | 7440NA |
| 2015-2016 | 7440NA |
| 2014 | 4157NA |
| 1993-1999 | 2357NA |
| 1992 | 3057 |
Rear Turn Signal
| Years | Bulb Size |
|---|---|
| 2023 | 7444NA |
| 2015-2016 | 7440NA |
| 2014 | 7443 |
| 1992-1999 | 3057 |
Bulb Specifications
| Description | Bulb Size |
|---|---|
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W. | 7444NA |
| ANSI standard (US & Canada). Single-filament wedge bulb (T20), natural amber glass. 12V, 21W. | 7440NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V, 27W/7W. | 4157NA |
| ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W. | 2357NA |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T25). 12V, 27W/7W. | 3057 |
| ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W. | 7443 |