Upgrade your Peterbilt 359 or 370 Series with the Trailer Parking Brake Pin Style Knob. Made with genuine African Rosewood and a chrome base, this knob fits a 3/8 inch shaft and is sold individually. It's designed to fit most Peterbilt 359 and 370 Series makes and models, adding a touch of elegance and functionality to your truck. Improve your parking brake with this stylish and practical accessory.