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Parts Needed To Install a Brake Controller and 7-Way On a 2019 Mercedes-Benz Sprinter 2500

Question:

I need to tow a trailer with our 2019 Mercedes-Benz Sprinter 2500 but we didn't get the tow package. I need a 7-way for the trailer. What are our options?

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Expert Reply:

In order to add a seven way trailer connector and brake controller on a 2019 Mercedes-Benz Sprinter 2500 you will first need to start with a four way and then you can adapt the four way to a seven way following this up with a brake controller. For a four way, the T-One Vehicle Wiring Harness part # 118649 is our best option which is completely plug and play. For a four to seven way adapter, I recommend the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation part # ETBC7L. The 7-Way RV Upgrade Kit will plug into the four way and then you will need to run one of the wires to the battery and then the other to a ground.

For a brake controller, I recommend the Curt Echo Mobile Trailer Brake Controller part # C51180. The Curt Echo when used with the 7-Way RV Upgrade Kit requires no other connections to be made. It uses your phone so you don't have to learn a new device and it doesn't require any drilling into the dash like a standard brake controller would. Furthermore, a standard brake controller would require multiple other connections that would be needed for the four to seven way adapter.

I have attached a few install videos for you to look over.

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Conner L

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