Updating the trim on a Peterbilt 379, 388 or 389 can be both practical and stylish with 4-inch standard wrap cab panels that include light cutout options designed to simplify marker light installation without extra drilling. These stainless steel panels are chrome-plated for corrosion resistance and sold as matched driver and passenger pairs, with configurations such as 4?Inch Cab Panels with 14?-?2?Inch Round Light Cutouts, 4?Inch Cab Panels with 4?Peterbilt Light Cutouts, 4?Inch Cab Panels with 4?Universal Light Cutouts, 4?Inch Cab Panels with 4?Slotted Light Cutouts, 4?Inch Cab Panels with 6?2?Inch Round Light Cutouts, 4?Inch Cab Panels with 5?Universal Light Cutouts, 4?Inch Cab Panels with 5?Bullseye Light Cutouts, 4?Inch Cab Panels with 10?Bullseye Light Cutouts and 4?Inch Cab Panels with 6?Elite Mini Light Cutouts to fit a variety of lighting plans. These panels fit model years Peterbilt 378 (1988-2007), 379 (1987-2007), 388 (2008-2014) and 389 (2008-2023) including 389 Glider units, and include a warranty against defects in workmanship and materials from the date of purchase. Because they are quality aftermarket (non-OEM) parts made in the USA and ship directly from the manufacturer, they may arrive separately from other order items-so plan your installation accordingly.