R7-51 - EZ Female to 7-Way Male Plug Holder The S7-10 is the trailer

The S7-10  is the trailer end of the new EZS7 product line and includes 8 feet of cable

EZ Male to 6-Way Female (EZR7-56) The 6-pin round adapter converts an EZR7 or EZS7 socket mounted on a truck to a 6-way socket

7/2 or 7/12 combination socket in the factory bumper hole of a plastic bumper or in-bed plastic mounting plate

Bumper- 4' Trailer Only

plus a 4 ft male S-version hard-wired EZ Connector trailer cable or implement cable connector

R7-51 - EZ Female to 7-Way Male Plug Holder The S7-10 is the trailerEZ Female to 7 Way Male (EZR7 51) Converts an EZ Connector male plug mounted on a trailer to a 7 way RV male plug. This adapter is designed to connect a trailer equipped with an EZ Connector male plug to a vehicle's legacy RV 7 Way connector mounted on a truck that has not yet been converted to the EZ Connector System. It is meant to be used in the event of an emergency or short term use if the trailer needs to be pulled by a truck without the EZ