Chevrolet Silverado 3500HD 2012 Bulb Size
Bulb size chart
This page covers bulb sizes for the 2012 Chevrolet Silverado 3500HD and is organized by lighting position so you can quickly verify the correct replacement before you buy. Whether you are changing a headlight, signal lamp, interior bulb, or cargo light, matching the bulb to the correct location helps avoid guesswork and returns.
The 2012 Chevrolet Silverado 3500HD uses different bulb types depending on the lamp position, and some lighting setups can vary by trim, body style, or market. Use the bulb chart on this page as a practical reference for common exterior and interior bulbs on this truck, including headlight, tail light, reverse light, and cabin lighting applications.
For the best fitment, compare the bulb listed here with the one already installed in your truck before ordering, especially if your Silverado 3500HD has an optional lighting package or has been modified. Halogen and LED replacements are not always direct swaps, and some aftermarket LED conversions may need additional parts or may change beam pattern, brightness, or warning behavior. If your truck has been serviced before, the installed bulb may not match the original factory specification, so checking the old bulb is still the safest way to confirm the correct replacement.
FAQ
What is the low beam bulb size for a 2012 Chevrolet Silverado 3500HD?
The low beam headlight bulb listed for the 2012 Chevrolet Silverado 3500HD is H11.
What is the high beam bulb size on this truck?
The high beam headlight bulb listed for the 2012 Chevrolet Silverado 3500HD is 9005.
What bulb does the front turn signal use?
The front turn signal light bulb listed for this model is 4157NA.
Does the parking light use the same bulb as the front turn signal?
Yes. The parking light bulb listed for the 2012 Chevrolet Silverado 3500HD is 4157NA, the same bulb type shown for the front turn signal and front side marker positions.
What bulb size is used for the front side marker light?
The front side marker light bulb listed is 4157NA.
What is the daytime running light bulb on this Silverado 3500HD?
The daytime running light bulb listed is H11 LED.
What bulb is used for the fog lights?
The front fog light bulb listed is 5202 LED.
What bulb does the center high mount stop light use?
The center high mount stop light bulb listed for this vehicle is 921.
What is the license plate light bulb size?
The license plate light bulb listed is 168.
What bulb is used for the dome light and map light?
Both the dome light and map light bulbs listed for the 2012 Chevrolet Silverado 3500HD are 212-2.
What bulb is used in the vanity mirror light?
The vanity mirror light bulb listed is 6612F.
What bulb size is used for the cargo area light?
The trunk or cargo area light bulb listed is 912.
What bulb is used for the rear turn signal and reverse light?
The rear turn signal light bulb and the back up reverse light bulb listed are both 3047.
What bulb is used for the brake light and tail light?
The brake light bulb and tail light bulb listed are both 3047R.
Can bulb sizes vary on a 2012 Chevrolet Silverado 3500HD?
Yes. Trim level, body style, lighting package, and market can affect bulb fitment, so it is smart to confirm the bulb by position and check the installed bulb before buying replacements.