The Tractor Parking Brake Pin Style Knob is a practical and reliable accessory for Peterbilt 359 and 370 Series vehicles. Made from high-quality billet aluminum, it is available in different styles and features a chrome finish. With a choice of 3/8 or 5/16 inch shaft, this knob fits most Peterbilt 359 and 370 Series makes and models. Its chrome plate billet aluminum construction ensures durability and a sleek appearance. Sold individually, this knob is a perfect addition to enhance the functionality and aesthetics of your tractor's parking brake.