assurance tested, more responsive, less expensive, easier to install. An extension of the truck's existing towing line. Retain the use of the old 7-way RV rear socket, while adding an additional 7-way socket on the truck bed. The socket can be fixed at any position on the truck bed, and then the extension wire can be inserted into the existing factory wiring. The socket has spring-loaded dust cover, it can keeps connector clean. For Models: 1997-2014 for . 2004-2004 for . 1997-1999 for . 1997-1997 for HD. 1999-2016 for Super Duty. 1999-2021 for Super Duty. 1999-2016 for Super Duty. 1999-2021 for F-450 Super Duty. 2008-2016 for F-450 Super Duty. 1999-2021 for F-550 Super Duty. For Ram Models: 2009-2010 For Ram 1500. 2010-2010 For Ram 2500. 2010-2010 For Ram 3500. 2011-2021 For Ram 1500 2011-2021 For Ram 2500 2011-2021 For Ram 3500 For Models: 1999-2019 For 1500. 1999-2019 For 2500. 2001-2019 For 3500. For Models: 1999-2019 For 1500. 1999-2019 For 2500. 2001-2019 For 3500. For Models: 2004-2021 For . 2016-2020 For XD. For Models: 2010-2021 For . Vehicle compatibility charts are for REFERENCE ONLY. Checkproduct type and sizeto match your needs. Part Number:56070 Working Voltage:6-24Volts Color:Black Material:ABS Package Contents: 1 x Trailer Wiring Harness Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.