How to Add a 7-Way Connector to a 2024 Toyota Sienna
Updated 02/25/2026 | Published 02/22/2026
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Question:
looking for a 4th gen Toyota Sienna wiring harness to tow my small camper with a 7 pin connector...not seeing anything? May buy the woodland edition for the better suspension, it has a 4 pin installed, or possibly a different trim without a tow package. Appreciate any suggestions.
asked by: Suzy E
Expert Reply:
Hey Suzie. To add a 7-Way connector to a 4th generation Toyota Sienna you'll need a 4-way wiring harness like item # C53VV and the Universal Installation Kit item # ETBC7. There is no custom fit 7-way harness and you have to have a 4-way harness installed as well.
The Curt item # C53VV is a custom fit harness that plugs into a factory connector at the rear of your Sienna. It will provide you with a 4-way connector.
The Universal Installation Kit item # ETBC7 includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your Sienna with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it. You'll then need to connect a line to your battery and your brake controller.
I've linked a couple of installation videos below so you can see how to get these wiring harnesses installed.
What kind of camper do you have?
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Product Page this Question was Asked From
Curt Trailer Hitch Receiver - Custom Fit - Class III - 2"
- Trailer Hitch
- For Towing
- Class III
- 350 lbs TW
- 3500 lbs GTW
- 5000 lbs WD GTW
- 2 Inch Hitch
- 500 lbs WD TW
- Visible Cross Tube
- CURT
more information >
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