Upgrade your Peterbilt 330/335/337 with durable deck plates and air line boxes! Choose from rugged aluminum and stainless steel options in various sizes and configurations to fit your truck. Features include integrated air line boxes for easy connections, sectional designs for customization, and finishes like diamond plate or smooth for a polished look. With flush-mount and in-frame options, these premium products from trusted brands like Merritt and Brunner add style and functionality to your rig. Installing quality deck plates on your Peterbilt can give improved traction in the form of more secure footing, reducing the risk of slips and falls, and greater convenience. Installing air line boxes, on the other hand, can not only improve the aesthetic of your semi truck, but protect your air lines and reduce the risk of air leaks.