The Peterbilt 579 Cab, 63" Sleeper & Extension Kit w/Block Heater - (TX-TP-10116L) is a highly practical and efficient product. Equipped with 18 Infinity LEDs, it offers exceptional visibility and safety on the road. This kit is designed to enhance the functionality of your Peterbilt truck, providing a comfortable and convenient sleeping space. With the added block heater, you can ensure a warm and cozy environment during colder weather conditions. Upgrade your truck with this reliable and beneficial product for a more enjoyable and efficient driving experience.