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Recommended Method For Installing Longer 7-way Trailer Connector Harness On Trailer W/ 9' Deck


I have a 2018 Rockwood A-frame camper .. I am adding a 9 foot deck on the front .. it currently has a 7 pin harness/plug on the trailer now .. in your opinion what would the best way to add to the existing wiring .. thanks


Expert Reply:

The best way would be replacing the current 7-way connector at the junction box and installing a longer harness.

The junction box should be located not too far behind the coupler of your 2018 Rockwood A-Frame camper and will be on the inside of the A-frame.

I recommend going with the 7-Way Molded Connector w/ 18' Cable - Trailer End # 50-67-106 which will be plenty long to clear the 9' deck on your trailer and it can be cut down to the exact length you want/need. Just make sure to not make it too short that when you turn it gets pulled on.

You will need to use 7 of the ring terminals # 44-5310A to be able to install the harness in your junction box.

The reason I like this method instead of an adapter harness such as the # 50-67-210 or # TLW6510 is that there is only one connection point where the connector plugs in to the 7-way connector on your tow vehicle. On the adapter harness you have two connection points which is just adding additional locations to possibly have problems.

I included a video of the # 50-67-106 being installed for you to take a look at.

expert reply by:
Samuel C

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