Find a wide variety of Peterbilt 379 headlights, including halogen, full LED projector, and LED Halo options right here at 4 State Trucks. The many options for this model is a big reason why it makes a great show truck. The most common Peterbilt 379 headlight assembly shapes are 6" X 4" rectangular and 7" or 5 3/4" round. The 6” X 4” brackets are the standard for this model of Pete. By installing a double J headlight bracket, you can easily fit most of the round headlight options. We are proud to offer competitive prices and outstanding customer service for our products.