This Stainless Steel Trailer Air Suspension Switch Plate is a practical and durable solution for 2005 and older Peterbilt trucks. Made of high-quality 304 stainless steel, it is built to last and withstand the rigors of the road. It fits most 2005 and older Peterbilt 359 and 370 makes and models, making it a versatile choice for truck owners. Sold individually, this switch plate is a reliable replacement for OEM parts and is available in stainless steel. Upgrade your trlr air suspension with this sturdy and dependable switch plate.