For the 1999 Chevrolet Blazer, the supplied fitment data lists a 9005 bulb for the high-beam headlight. No low-beam bulb is specified in the available data, so confirm the original bulb before ordering. The fog lights may use either 880 or 881; compare the replacement with the bulb currently installed.
- Front turn signal and parking light: 3157
- Front side marker: 194NA
- Reverse light: 3156
- Brake and tail light: 3057R
- Rear turn signal: 3057
- Center stop lamp: LED
- License plate or glove-box applications may use 194 or 7441; compare the original bulb.
Interior fitments include options such as 168, 917, 906, 562, 564, and 211-2, depending on the specific lamp. Check the existing bulb where multiple options are listed.