The Peterbilt 567/579 Deck Plates & Air Line Boxes are all about giving you some solid deck plates and air line boxes that are both functional and stylish for your Peterbilt semi-trucks. They have a bunch of sizes, materials, and setups to fit whatever needs you have as a Peterbilt owner or operator. The deck plates themselves range in length from 34 to 120 inches within the product line and are designed with materials like stainless steel, aluminum, and diamond plate. You can go with in-frame installation for the deck plates or go with flush-mount options, so they blend right in with the appearance of your truck. Plus, many of these deck plates have air line box cutouts; adding all the components you would like is very easy. The air line boxes in this product line are made to accommodate trailer air, 7-way, and 4/6-way electrical hookups. They come in recessed, on-top, and trough-style setups, making them very easy to get to and place just right. They are built from the best materials: stainless steel and smooth aluminum that will last a long time and look really sharp. If you're looking to spruce up your Peterbilt 567 or 579, this product line has a whole bunch of deck plates and air line boxes that'll totally fit what you're after. All are about quality, durability, and flexibility, so these products will really boost the look and functionality of your Peterbilt semi-truck.