CURT Step Bumper Hitch Receiver, 2-Inch, 5,000 lbs. Model 19030CURT Step Bumper Hitch Receiver, 2 Inch, 5,000 lbs. Model 19030 A CURT bumper hitch mounts onto your vehicle's bumper, rather than the frame, and provides a receiver tube for a ball mount, cargo carrier, bike rack or other hitch mounted insert. Unlike a bumper mount, which is simply a hole in the vehicle's bumper for installing a trailer ball, a bumper hitch allows for adjustment and flexibility in towing application. This CURT receiver style bumper