This is what you will need to install it in your motorhome. SMI 6231 Coach Air Connection Assembly Kit. Also known as part # 99627 https://www.rvupgradestore.com/Air-Fo... Unless the new coach is already pre plumbed for an air braking system like some of the newer Spartan & Freightliner chassis are. Then you might just need a new coiled ai jumper.