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Trailer Hitch and Parts Needed to Add 7-Way Wiring Harness to 2021 Toyota Sienna


Hi Etrailer, For our 2021 Toyota Sienna, we understand the compatible hitch is Curt C22UR. Is there plug and wiring harness that hooks into the 2021 Sienna with both round 7 pin for our small camper with brakes and flat 4 pin for our utility trailer? Thank you


Expert Reply:

We do have a trailer hitch receiver and all the parts you need in order to add a 7-way to your 2021 Toyota Sienna, though there isn't a plug-in 7-way, you will need to first add a 4-way and then install a 7-way. The exact parts you need for your '21 Sienna are the following:

- Curt Trailer Hitch Receiver # C22UR

- T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # TK69FR

- Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat # ETBC7

The installation kit includes the hardware needed to install the 7-way, and the connector does have a plug for your 7-way as well as a plug for the 4-way so you can connect either trailer. It will be exactly what you need to install a brake controller as well like the Prodigy P3 # 90195 or Curt Echo # C51180.

I have added links below to some video reviews for you to check out as well as help articles for the installation of the 7-way.

expert reply by:
Kyle S

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