The Peterbilt 579 2013 and newer Cab/Sleeper/Extender Kit is designed for underbody exhaust models with a 117-inch BBC. This kit includes cab skirts and 80-inch sleeper skirts with extenders, all made of stainless steel. Each skirt features amber LED lights and measures 2.5 inches wide. The driver side has two block heater cutouts for added convenience. The kit comes complete with lights, hardware, and harnesses. It is compatible with most Peterbilt 579 2013 and newer makes and models. This kit offers practicality, durability, and enhanced visibility with its LED lights, making it a great choice for truck owners.