Connecting Ram with 7-Way Blade Connector to 5th Wheel Trailer with 7-Way Female Round Pin Connector

Question:

vehicle: 2018 Ram 3500 We looking for a cable to connect from our ram 3500 truck bed to our fifth wheel car hauler. We need the standard ram in. On the other side we need a 7 pin female an a battery connect charger for the trailer battery. The end with the blades is the truck end. The end with the pins is the trailer end. Included on the trailer end I need the batter cable connection. Thank you.

asked by: Thomas T

Expert Reply:

It looks like your Ram is equipped with a standard 7-Way female blade style connector but your trailer has a 7-Way round pin connector, specifically the female end which is usually on the tow vehicle side. Because of this unorthodox setup there isn't a single cable available that will connect the trailer to your Ram but we do have the pieces needed to do this.

In order to connect your Ram to the trailer you can use a 7-Way loop like the Bargman # 50-67-210 and then an adapter like the Hopkins # 47595 to go from the 7-Way blade style to the 7-Way round style pins on the trailer.

Otherwise your best option will really be to just cut the 7-Way round connector off the trailer and wire in a standard 7-Way blade male end like # PK12706 in its place. This will give you a traditional setup that wouldn't require you to use any type of adapter. You could then use a standard 5th Wheel Wiring Harness such as the Curt # C56070 to hookup to the trailer. This will plug inline with the factory 7-Way on the truck so you can still retain the connector at the bumper when it's in use.

expert reply by: Chris R