Built for select Peterbilt 389 applications, these 3-inch stainless extended cab panels offer a durable upgrade option. Made from 304 stainless steel, the panels are designed to add a polished accent along the cab while maintaining the durability expected for heavy-duty use. The set includes both left and right side panels, making it a complete exterior upgrade for compatible extended cab configurations. Each panel comes equipped with 16-3/4-inch amber LED lights, providing added side marker visibility while giving the truck a cleaner custom look. The stainless construction helps resist corrosion and road wear, making these panels a practical option for trucks that spend long hours on the road. Their extended design creates a smooth, finished appearance between the cab and sleeper area, which makes them a popular aftermarket styling accessory for owner-operators. Made in the USA, these panels are available for specific sleeper setups, so confirming your truck's dimensions and fitment before ordering is important.