carries a wide assortment of Catalyst 4 parts. has the Catalyst 4 anti-tips, back upholstery and accessories you need. We ship your Catalyst 4 parts directly from the manufacturer. Get the lowest prices possible on Catalyst 4 parts. It’s ’s priority to provide you with top quality, OEM Catalyst 4 parts, straight from the manufacturer. If you are unable to find the Catalyst 4 part you were looking for, call customer service at 1-800-236-4215.