
SEALIGHT H10/9145/9140 LED Fog Light Bulbs, 6000K Xenon W...
$17.09
Buy on Amazon →
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam
Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb
Used for: Daytime Running Light Bulb
Used for: License Plate Light Bulb, Roof Marker Light Bulb, Courtesy Light Bulb(Compare to original - Option 1), Glove Box Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb(Compare to original - Option 2)
Used for: Dome Light Bulb(Compare to original - Option 1), Map Light Bulb
Used for: Dome Light Bulb(Compare to original - Option 2)
Used for: Trunk or Cargo Area Light
This page helps you verify the bulb sizes for the 2004 GMC Sierra 2500HD by lighting position, so you can match the correct replacement before you buy. Whether you are changing a headlight, tail light, marker lamp, or interior bulb, checking the exact socket location is the easiest way to avoid ordering the wrong part.
The 2004 Sierra 2500HD uses a mix of exterior and interior bulb types, and some positions may vary by trim, body style, or lighting package. Use the chart on this page to confirm the bulb size for each lamp location, including headlights, fog lights, brake lights, license plate lights, dome lights, and cargo-area lighting.
Fitment can differ between trims and packages, so it is smart to compare the listed bulb size with the bulb already installed in your truck before purchasing. This is especially important if your Sierra has factory halogen lighting, an optional lighting package, or an aftermarket LED conversion. Some replacements are direct-fit halogen bulbs, while others may be LED upgrades that still need the correct base and physical shape. If a lamp has been modified in the past, the original bulb size may no longer be installed, so a quick visual check can save time and prevent return hassles.
The low beam headlight bulb is 9006.
The high beam headlight bulb is 9005.
The daytime running light bulb is 4114.
The front fog light bulb listed for this model is 9145 LED.
Both the front turn signal light and the parking light use 4157NA.
The rear turn signal bulb is 3157A, and both the brake light and tail light use 3157R.
The center high mount stop light bulb is 921.
The back up reverse light bulb is 3157.
Both the license plate light and glove box light use 194 bulbs.
The roof marker light bulb is 194.
Both the front side marker light and rear side marker light use 194NA.
The map light uses 578. The dome light may use 578 or 211-2 depending on the setup.
Courtesy lights may use 194 or 2721 depending on the position and original setup, and the trunk or cargo area light uses 912.
Yes. Trim, body style, and lighting package can change the bulb used in certain positions, so it is best to confirm the installed bulb before ordering.