For the 2017 Chevrolet Silverado 2500HD, the low-beam headlights use H11 bulbs, while the high-beam headlights use 9005 bulbs. The supplied fitment data does not indicate a projector or non-projector headlight variation, so verify the existing bulb and housing before ordering.
The fog lights use 5202 LED bulbs. For exterior signaling and marker lighting, the front turn signals and front side markers use 7443A bulbs. The parking lights use 7443 bulbs.
At the rear, the brake lights and tail lights use 7444 bulbs, while the rear turn signals and rear side markers use 7444NA bulbs. Reverse lights and the center stop light use 921 bulbs. The license plate lights use 2825 bulbs. Interior applications listed include 921 bulbs for the trunk light and 6612F bulbs for the vanity light.