For owners of Peterbilt 378 and 379 trucks, 6-inch cab and cowl panels with light options provide a polished stainless steel exterior upgrade that also simplifies adding marker lighting without extra drilling. These panels are made in the USA and sold as matched pairs for driver and passenger sides, with a range of built-in light configurations including 16 bullseye cutouts or 18 and 19 round amber or amber/clear lights spaced to suit your lighting design. The chrome-plated stainless steel construction offers corrosion resistance and a clean look while the included warranty against defects in workmanship and materials from the date of purchase adds confidence in durability. Because these are high-quality aftermarket replacements rather than OEM parts, they deliver a cost-effective way to refresh worn trim or customize your truck's appearance. Note that cab and cowl panels ship directly from the manufacturer and may arrive separately from other order items, so plan accordingly. Before ordering, check fitment for your specific Peterbilt model year (typically 378 models from 1988-2007 and 379 models from 1987-2007) to ensure proper compatibility.