For the 2008 Chevrolet Silverado 1500, the low-beam headlights use H11 bulbs, while the high-beam headlights use 9005. The supplied fitment data does not identify a separate projector or non-projector headlight variation, so verify the original bulb before ordering if your truck has replacement or modified headlamp assemblies.
The fog lights use 5202 LED bulbs, and the daytime running lights use H11 LED. Front parking and turn signals both use 4157NA. At the rear, the brake and tail lights use 3047R, while rear turn signals use 3047.
Reverse-light fitment has two listed options: 3047 or 921. Compare the existing reverse bulb and socket with these options before purchasing. The center stop light uses 921. Other listed locations include 194 for the license plate, 212-2 for the dome and map lights, and 912 for the trunk light.