Chevrolet Silverado 3500HD 2008 Bulb Size
Bulb size chart
This page helps you verify the bulb sizes for the 2008 Chevrolet Silverado 3500HD by lighting position, so you can match the correct replacement before you buy. Whether you are replacing a headlight, marker lamp, brake light, or interior bulb, checking the exact socket location is the easiest way to avoid ordering the wrong part.
The 2008 Silverado 3500HD uses different bulb types depending on where the light is mounted, and some trim or lighting packages can change the fitment. Use the bulb chart on this page as a quick reference for high beam, low beam, turn signal, parking, reverse, cargo, dome, map, and other exterior and interior lights.
For the best fit, compare the chart with the bulb already installed in your truck, especially if your Silverado 3500HD has a different trim, body style, or market-specific lighting package. Halogen and LED replacements are not always direct swaps, and some aftermarket conversions may need extra resistors, adapters, or housings to work correctly. If you are unsure, remove the old bulb and check the number printed on the base before ordering a replacement.
FAQ
What is the low beam bulb size for a 2008 Chevrolet Silverado 3500HD?
The low beam bulb listed for this model is H11.
What bulb does the high beam use on the 2008 Silverado 3500HD?
The high beam bulb size listed is 9005.
What are the front turn signal and parking light bulb sizes?
Both the front turn signal light and the parking light use 4157NA on this page.
What bulb is used for the center high mount stop light?
The center high mount stop light bulb size listed is 921.
What size is the license plate light bulb?
The license plate light bulb is listed as 194.
What bulb is used for the roof marker lights?
The roof marker light bulb size listed is 194.
What are the rear turn signal and reverse light bulb sizes?
Both the rear turn signal light and the back up reverse light use 3047.
What bulb size is used for the brake light and tail light?
Both the brake light bulb and tail light bulb are listed as 3047R.
What bulb does the fog light use?
The front fog light bulb is listed as 5202 LED.
What are the dome and map light bulb sizes?
Both the dome light bulb and map light bulb are listed as 212-2.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb is listed as 912.
Why should I check the installed bulb before buying replacements?
Because trim level, body style, and lighting package can affect fitment, and some trucks may have been modified with different bulbs over time. Checking the installed bulb helps confirm the exact match before purchase.
Can I replace halogen bulbs with LED bulbs on this truck?
Yes, but not every LED bulb is a direct plug-in replacement. Some positions may need CAN bus support, resistors, or a compatible housing to prevent errors or poor beam pattern.
Does this bulb chart apply to every 2008 Silverado 3500HD?
It covers the common fitments shown on this page, but exact bulb sizes can vary by market, trim, and lighting equipment. Always verify the bulb at the vehicle when possible.