The Peterbilt 579 Cab and 80 Inch Sleeper and Extension Panel Kit is a practical and durable solution for Peterbilt 579 Long Hood Models. Made of stainless steel, this kit includes 18 slotted light holes and a block heater hole, providing convenience and versatility. With a width of 2 - 1/2 inches, it fits most models seamlessly. This kit is sold as a complete package, ensuring easy installation and a streamlined appearance. Enhance the functionality and aesthetic of your Peterbilt 579 with this reliable and high-quality kit.