Chevrolet Silverado 1500 2020 Bulb Size
Bulb size chart
The 2020 Chevrolet Silverado 1500 uses several different bulb types depending on the lighting position, trim level, and equipment package. This page helps you verify the correct bulb size by location, so you can match the right replacement for headlights, tail lights, license plate lights, and other exterior and interior lamps.
If you are replacing a burned-out bulb on your Silverado 1500, checking the light position first is the easiest way to avoid ordering the wrong part. The same model year can use different bulbs in different spots, and some lighting setups may vary by market or body style.
For the best fitment results, compare the bulb listed for your specific trim and lighting package with the bulb already installed in the vehicle. Halogen and LED-equipped versions may not use the same service parts, and aftermarket conversions can change the required bulb or connector style. Before buying, it is a good idea to remove the old bulb and confirm the marking on the base, especially for positions that can vary between cab styles, bed lengths, or regional builds.
FAQ
What bulb does the 2020 Chevrolet Silverado 1500 use for the low and high beams?
The listed headlight bulb for both high beam and low beam is D5S. Always confirm your truck’s headlamp type before ordering, since lighting equipment can vary by trim and package.
What is the bulb size for the front turn signal on a 2020 Silverado 1500?
The front turn signal bulb is listed as 7443A. This same bulb type is also shown for the front side marker light.
What bulb fits the rear turn signal on this truck?
The rear turn signal bulb is listed as 7444. On this page, the rear tail light and rear side marker light also use 7444.
What bulb is used for the brake lights?
The brake light bulb is listed as 7444. If your Silverado has a combined rear lamp setup, it is important to match the exact bulb position shown on the vehicle.
What bulb size is used for the tail lights?
The tail light bulb is listed as 7444. Since rear lighting can differ by body style or market, it is smart to verify the installed bulb before replacing it.
What bulb does the backup light use?
The back up light bulb is listed as 921. This is a common service bulb, but you should still confirm the lamp housing on your specific Silverado 1500.
What is the license plate light bulb size?
The license plate light bulb is listed as 2825. If one side is out, replacing both bulbs at the same time can help keep the color and brightness even.
What bulb is used for the center high mount stop light?
The center high mount stop light bulb is listed as 921. This is the high-mounted brake light located above the rear window or cab area.
What bulb fits the parking lights?
The parking light bulb is listed as 7443. Depending on the trim and lighting package, the parking light may share a bulb family with other front lighting functions.
What bulb size is used for the front side marker lights?
The front side marker light bulb is listed as 7443A. This is separate from the rear side marker listing on this page.
What bulb does the rear side marker light use?
The rear side marker light bulb is listed as 7444. Rear lamp assemblies can differ, so it is best to confirm the exact position before ordering.
Does the 2020 Silverado 1500 use the same bulb for the cargo area light and the vanity mirror light?
No. The trunk or cargo area light is listed as 921, while the vanity mirror light bulb is listed as 6612F.
Why should I check the installed bulb before buying replacements?
Because trim and lighting package differences can affect the correct fitment. Checking the bulb already in the truck helps confirm the exact base, size, and style, especially if the vehicle has been modified or converted to aftermarket LED lighting.