The 2019 Chevrolet Blazer uses a D3S bulb for both the low-beam and high-beam headlights. Verify the existing bulb and headlamp assembly before ordering, especially if the vehicle has a different factory lighting configuration.
The fog lights and daytime running lights use integrated LED lighting rather than replaceable bulb numbers. Other notable exterior fitments include:
- Front turn signal and parking light: 7444NA
- Front side marker: 194
- Rear turn signal: 7440
- Brake light: 7440
- Center stop light: 921
- License plate light: 168
- Rear tail light and rear side marker: LED
Interior fitments include a 194 dome light, LED map lights, and an LED trunk light. The reverse-light chart contains no listed bulb fitment for this model year.