The Peterbilt 579 Cab Stainless Steel 80 Inch Blank Sleeper And Extension Panel Kit is a practical and durable solution for long hood models with 2 block heater holes. Made of stainless steel and 2 1/2 inches wide, this kit includes one block heater hole and is installed using supplied hardware. It fits most Peterbilt 579 with short hood and one block heater hole, making it a versatile and convenient option for truck owners looking to upgrade their sleeper and extension panels.