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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam(Denali)
Used for: Headlight Bulb Low Beam(Base)
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, Courtesy Light Bulb(Compare to original - Option 1), Glove Box Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Ash Tray Light Bulb
Used for: Courtesy Light Bulb(Compare to original - Option 2)
Used for: Dome Light Bulb(Compare to original - Option 1), Map Light Bulb(Compare to original - Option 2)
Used for: Dome Light Bulb(Compare to original - Option 2)
Used for: Engine Compartment Light Bulb
Used for: Map Light Bulb(Compare to original - Option 1)
Used for: Trunk or Cargo Area Light
This 2002 GMC Sierra 1500 bulb size page is designed to help you verify the correct replacement bulb by lighting position, not just by guesswork. Because the Sierra 1500 could be equipped with different trims, cab styles, and lighting packages, the bulb used in one location may differ from another even on the same truck.
Use this guide to match the bulb size to the exact lamp on your 2002 GMC Sierra 1500, including headlights, tail lights, turn signals, license plate lights, interior lights, and cargo-area lighting. Checking the position first makes it much easier to buy the right replacement the first time.
Fitment can vary by trim and market, and some lighting setups change with body style or package options, so it is smart to confirm the bulb already installed before ordering. This is especially important if your truck has halogen lighting, a Denali-specific headlight setup, or an aftermarket LED conversion, since the bulb type and beam pattern may not match a stock application. If a previous owner has modified the truck, the listed bulb size may still be correct, but the actual bulb in the housing could be different. For the best results, remove the old bulb, compare the base and connector, and use the installed bulb as a final check before purchase.
The high beam headlight bulb listed for the 2002 GMC Sierra 1500 is 9005.
For the base low beam application, this page lists 9006 for the 2002 GMC Sierra 1500.
The low beam bulb listed for Denali is 9005. Always confirm the exact headlamp setup before buying.
The front turn signal bulb is listed as 3157A.
The parking light bulb is listed as 3157A.
The rear turn signal bulb is listed as 3157A.
Both the brake light bulb and the tail light bulb are listed as 3157R.
The center high mount stop light bulb is listed as 921.
The license plate light bulb is listed as 194.
The front side marker light bulb and rear side marker light bulb are both listed as 194NA.
The front fog light bulb is listed as 880.
The daytime running light bulb is listed as 4114.
The back up reverse light bulb is listed as 3157.
This page shows multiple interior options, including 168, 578, and 211-2 for certain map and dome light applications. Check the exact lamp position before ordering.
The glove box light bulb is listed as 194. Courtesy light applications on this page include 194 and 2721, depending on the position and original setup.
Yes, it helps identify the original bulb size by position, which is the first step before choosing an LED replacement or adapter.
Yes. Because trim and lighting package differences can affect fitment, checking the installed bulb is the safest way to confirm the correct replacement for your 2002 GMC Sierra 1500.