There are tons of options when it comes to Peterbilt 379 headlights. The great selection of products for these trucks is one of the reasons they're so popular for show trucks--that, and because these Big Rig's ooze with style. Headlights for Peterbilt 379s typically come in two different shapes: a rectangular 6"x4" headlight or a round 7" or 5 3/4" light. The standard headlight bracket for these models of Petes is the 6x4 style, but with a double J headlight bracket, you can easily fit a round-style light on your truck. To find the perfect light for you, simply choose from a chrome or black housing, then select the type of light that you want, such as a halogen light, Full LED projector, or LED Halo.