INSTALLING THE STAINLESS-STEEL KENWORTH HEATER BOX User Guide ( DOWNLOAD PDF ) Experience Improved Performance with Our Product, Designed for Durability and Efficiency. Customer Support Information Should you require any assistance, feel free to reach out to us on weekdays from 8 AM-5 PM PST at +1 (855) 855-2969 or & Kenworth Heater Box Removal and Installation: A Step-by-Step Guide " https://truckpartsline.com/kenworth-heater-box-removal-and-installation/