Our Billet Aluminum Tractor and Trailer Parking Brake Knobs are the perfect addition to your Peterbilt 370 Series. Made from high-quality billet aluminum with a sleek chrome finish, these threaded screw-on style knobs are both durable and stylish. With a 5/8 inch diameter and 11 threaded turn-on style, they are easy to install and provide a secure grip. Sold as a set of 2, these knobs are designed to fit most 2005 and older Peterbilt 370 Series makes and models. Upgrade your parking brake with these practical and functional knobs today.