CURT Camper Hitch for 2 x 4-Inch RV Bumper, 2 in. Receiver, 3,500 lbs Model 19101CURT Camper Hitch for 2 x 4 Inch RV Bumper, 2 in. Receiver, 3,500 lbs Model 19101 A CURT RV hitch is a trailer hitch that is designed to mount onto the back of a recreational vehicle to add extra cargo space. These hitches are manufactured using CURT's quality processes of robotic welding, thorough cleaning and precise finishing. Our RV bumper hitches are coated with a liquid A coat followed by a gloss black powder coat finish for lasing resistance