
PIAA 18803 881 Xtreme White Plus
$66.99
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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: License Plate Light Bulb, Ash Tray Light Bulb, Glove Box Light Bulb, Map Light Bulb(Compare to original - Option 1)
Used for: License Plate Light Bulb, Ash Tray Light Bulb, Glove Box Light Bulb, Map Light Bulb(Compare to original - Option 1)
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front
Used for: Turn Signal Light Bulb Rear
Used for: Check Engine Light Bulb, High Beam Indicator Light Bulb, Parking Brake Indicator Light Bulb, Turn Signal Indicator Light Bulb
Used for: Courtesy Light Bulb
Used for: Courtesy Light Bulb
Used for: Dome Light Bulb(Compare to original - Option 1)
Used for: Dome Light Bulb(Compare to original - Option 2)
Used for: Engine Compartment Light Bulb
Used for: Instrument Panel Light Bulb
Used for: Map Light Bulb(Compare to original - Option 2)
Used for: Trunk or Cargo Area Light
Used for: Vanity Mirror Light Bulb
This page for the 2003 Chevrolet Blazer helps you verify bulb sizes by lighting position, so you can match the correct replacement before you buy. Whether you are changing a headlight, tail light, interior lamp, or dash indicator, the bulb chart is organized to make fitment checks faster and easier.
The 2003 Blazer used several different bulb types across the exterior and interior lighting system. Because trim level, lighting package, market, and body style can affect what is installed, it is always smart to confirm the bulb at the exact location on your vehicle before ordering replacements.
For best fitment, compare the bulb in your Blazer with the listing for that position and note whether the original setup is halogen or LED. Some owners choose aftermarket LED conversions for brighter output or longer life, but those upgrades may require a different bulb shape, polarity check, or added load resistors to avoid warning issues or hyperflash. If your truck has been modified, or if a previous owner installed non-original bulbs, the part number on the page may not match what is currently in the socket. The safest approach is to inspect the installed bulb, confirm the base style and size, and then purchase the replacement that matches both the socket and the lighting function.
The high beam headlight bulb listed for the 2003 Chevrolet Blazer is 9005.
The brake light bulb listed for the 2003 Chevrolet Blazer is 3057R.
The tail light bulb listed for this model year is 3057R.
The rear turn signal bulb listed for the 2003 Chevrolet Blazer is 3057.
Both the front turn signal light and the front parking light are listed as 3157 on this page.
The front fog light bulb listed for the 2003 Chevrolet Blazer is 881.
The back up reverse light bulb listed for the 2003 Chevrolet Blazer is 3156.
The license plate light bulb is listed as 194 or 7441.
The glove box light bulb is listed as 194 or 7441.
Two dome light options are listed on this page: 562 and 564, depending on the original setup.
Two map light options are listed: 194 or 7441 for one original style, and 212-2 for the alternate original style.
The instrument panel light bulb listed for the 2003 Chevrolet Blazer is PC168.
The front side marker light bulb listed for this vehicle is 194NA.
The trunk or cargo area light bulb listed is 211-2.
Because trim and lighting package differences can change what is installed, and some vehicles may have been repaired or modified with non-original bulbs. Checking the installed bulb helps confirm the exact fit before purchase.