For the 2014 Chevrolet Silverado 3500HD, the low-beam headlights use H11 bulbs, while the high-beam headlights use 9005 bulbs. These are separate fitments, so confirm the bulb position before ordering.
The fog lights use 5202 LED bulbs, and the daytime running lights use H11 LED bulbs. For front signaling and parking functions, the truck uses 4157NA bulbs, including the front turn signals, parking lights, and front side markers.
At the rear, the reverse lights and rear turn signals use 3047 bulbs. The brake and tail lights use 3047R bulbs, while the center stop light uses a 921. Rear side markers use 7443A bulbs.
Other listed locations include 168 for the license plate lights, 212-2 for the dome and map lights, 912 for the trunk light, and 6612F for the vanity light. Use the specified LED designations where noted rather than substituting a standard bulb.