The Peterbilt Kingpin Release Valve Control Plate is a high-quality product made of 304 stainless steel. It features engravings for the kingpin release valve and operating instructions, providing easy and convenient usage. Each plate comes with chrome screws and is designed to fit most Peterbilt 370 series trucks from 2006 through 2007, as well as most Peterbilt 365, 367, 384, 386, 388, and 389 series trucks from 2006 and newer. This control plate offers practicality and durability, making it an essential component for truck owners and operators.