- New
35-946401 (Ultra-Fab) is a bumper-mounted receiver adapter designed for compatible 4-inch square RV bumpers. Its 2-inch receiver opening accommodates compatible hitch-mounted accessories, such as bicycle racks and cargo carriers. The heavy-duty steel construction features a durable black powder-coated finish, while the included zinc-plated hardware and U-bolts facilitate installation. The maximum load is limited by the adapter's rating and the bumper's capacity. This adapter is not designed for towing trailers. Confirm that your bumper is compatible and securely attached before installation.