Chevrolet Silverado 1500 2021 Bulb Size
Bulb size chart
The 2021 Chevrolet Silverado 1500 uses different bulb sizes depending on the lighting position, trim, and equipment package. This page is designed to help you verify the correct bulb size by location, so you can match the right replacement before you buy.
Whether you are replacing a headlight, brake light, license plate light, or cargo lamp, checking the bulb chart by position is the easiest way to avoid ordering the wrong part. The 2021 Silverado 1500 can use different bulbs for different functions, so fitment should always be confirmed carefully.
Fitment can vary by market, body style, and lighting package, especially on trucks with halogen or HID-style setups versus LED-equipped versions. Some aftermarket conversions may also change the bulb type or require adapters, resistors, or other hardware to work properly. Before purchasing, it is smart to inspect the bulb currently installed in your Silverado and compare it with the chart on this page, since the same model year may have different bulbs depending on trim and factory options.
FAQ
What bulb size does the 2021 Chevrolet Silverado 1500 use for the low beam headlight?
The listed low beam headlight bulb for the 2021 Chevrolet Silverado 1500 is H11.
What bulb size does the 2021 Silverado 1500 use for the high beam headlight?
The listed high beam headlight bulb is 9005 on applicable setups.
Does the 2021 Silverado 1500 use a different headlight bulb on some trims?
Yes. Some versions are listed with D3S for the headlight bulb high beam and low beam, which means the exact headlight setup depends on trim and lighting package.
What bulb is used for the front turn signal on the 2021 Silverado 1500?
The front turn signal bulb is listed as 7443.
What bulb size is used for the parking light on this truck?
The parking light bulb is listed as 7443.
What bulb size is used for the front side marker light?
The front side marker light bulb is listed as 7443.
What bulb size is used for the rear brake light on the 2021 Silverado 1500?
The rear brake light bulb is listed as 7444.
What bulb size is used for the tail light on this model year?
The tail light bulb is listed as 7444.
What bulb size is used for the rear turn signal light?
The rear turn signal light bulb is listed as 7444.
What bulb size is used for the rear side marker light?
The rear side marker light bulb is listed as 7444.
What bulb size is used for the center high mount stop light?
The center high mount stop light bulb is listed as 921.
What bulb size is used for the backup light?
The backup light bulb is listed as 921.
What bulb size is used for the license plate light?
The license plate light bulb is listed as 194.
What bulb size is used for the cargo area light?
The trunk or cargo area light bulb is listed as 921.
What bulb size is used for the vanity mirror light?
The vanity mirror light bulb is listed as 6614F.