The Kenworth T660 2010 to 2012 86 Inch Sleeper and Extension Kits for Chassis Fairings are a practical and beneficial addition to your truck. Made of stainless steel, these kits come with all the necessary hardware included. They are available with or without a blockheater hole and can be purchased blank or with 24 slotted holes. With a width of approximately 1.63 inches, these kits are sold as a complete set and fit most Kenworth T660 trucks with 86 inch sleepers and chassis fairings. Upgrade your truck with these durable and versatile kits for enhanced functionality and style.