
PIAA 18880 880 Xtreme White Plus
$58.60
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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
Used for: Back Up Reverse Light Bulb, Turn Signal Light Bulb Rear
Used for: Brake Light Bulb, Tail Light Bulb
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front
Used for: Courtesy Light Bulb, Glove Box Light Bulb, Map Light Bulb
Used for: Courtesy Light Bulb, Glove Box Light Bulb, Map Light Bulb
Used for: Dome Light Bulb, Trunk or Cargo Area Light
Used for: Vanity Mirror Light Bulb
This page covers the bulb sizes for the 2004 Chevrolet TrailBlazer and helps you verify the correct bulb by lighting position. Whether you are replacing a headlight, a tail light, or a small interior lamp, matching the bulb to the right location is the easiest way to avoid ordering the wrong part.
The 2004 TrailBlazer uses a mix of common halogen bulbs and smaller interior bulbs, and some positions may vary by trim, body style, or lighting package. Use this guide to compare each socket location before you buy, especially if your SUV has optional fog lights or a different rear lamp setup.
For best fitment, always check the bulb currently installed in your TrailBlazer before ordering, since trim and market differences can affect the exact application. This is especially important when comparing halogen bulbs with LED replacements, because aftermarket LED conversions may need additional compatibility checks or adapters. If you are upgrading from halogen to LED, make sure the new bulb matches the socket and that the beam pattern still works properly in the housing. When in doubt, confirm the installed bulb number and compare it with the chart for your specific lighting position.
The high beam headlight bulb is 9005.
The daytime running light bulb is 9005.
The front turn signal light bulb is 3757A.
The front parking light bulb is 3757A.
The front fog light bulb is 880, and it may only apply to vehicles equipped with fog lights.
The rear brake light bulb is 3157R.
The rear tail light bulb is 3157R.
The rear turn signal light bulb is 3157.
The back up reverse light bulb is 3157.
The license plate light bulb can be 2825 or 98.
The dome light bulb and trunk or cargo area light both use 212-2.
The glove box, map, and courtesy lights use 194 or 7441, while the vanity mirror light uses 37.
The front side marker light bulb is 194NA.
The center high mount stop light is listed as LED, while most other exterior and interior positions use standard bulb types.
Because trim level, body style, and lighting package can change the exact bulb application, and checking the installed bulb helps confirm the correct fit before purchase.