Maximize your semi-truck's aerodynamics with Peterbilt 389 Glider Bug Shields. These durable deflectors reduce wind resistance, improve fuel efficiency, and fend off road hazards, keeping your windshield in good shape. Made from smoked acrylic or 304 stainless steel, they integrate seamlessly with Peterbilt 388 and 389 models, offering a sleek, custom look. Ideal for heavy hauling and long trips, they enhance airflow and boost both performance and road presence.