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Recommended In Bed Trailer Connector Wiring Harnesses for Trucks w/a Factory 7-Way Connector  

Updated 06/04/2026 | Published 05/29/2026

Question:

I have a 2023 ram 1500 trx and Im Looking for Connector Vehicle Wiring Harness for Factory Tow Package ? which is my fit truck ?And what is different this two item ? Part Number: C55384 Part Number: C56584

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Expert Reply:

Hey Jae, thanks for the information. The Curt T-Connector Vehicle Wiring Harness item # C55384 is going to connect inline to your Ram's factory wiring. It'll provide an additional 4-way flat connector that can be used to power accessories like a light bar. It's typically ran up and into your bed.

The Curt T-Connector Vehicle Wiring Harness item # C56584 has an identical installation method but provides a 5-way flat connector. These are commonly found on boat trailers and used to activate surge brake lockouts.

We also have the Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector item # C56000. This also installs inline with your factory tow wiring. It provides an additional 7-way that will be mounted inside your Ram's bed. It's mainly used for towing gooseneck and 5th wheel trailers but is also really handy if you're hauling an in bed camper that requires a 7-way connection.

Please note that all of these wiring harnesses will only work with factory towing packages. If your truck doesn't have a factory 7-way these will not fit. They connect to what's called a USCAR connector that is not available with aftermarket setups. I attached a picture below of the connector and linked some installation videos so you can see how to get these parts installed.

What size connector are you needing and what are you going to be using it for?

You can add this information, along with any other questions you have, where it says Add Comment.

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Jerred H
C55384
C55384
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