CURT 57020 - OEM DUAL 7 & 4 WAY CONNECTORCURT OEM REPLACEMENT DUAL OUTPUT 7 & 4 WAY CONNECTOR ; PLUGS INTO USCAR Plugs into any USCAR socket to provide 4 way and 7 way trailer wiring connectors Simple plug and play design eliminates the need for cutting or splicing Easy, snap in installation 4 way flat output connects tail lights, brake lights and turn signals 7 way RV blade socket adds reverse lights, electric brakes and auxiliary power Rubber gasket to keep moisture and elements out Spring