Trailer Wiring Harness For A 2016 Toyota Sienna

Updated 08/17/2026 | Published 08/11/2026

Products Featured in This Question

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(196)

$87.95

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(218)

$123.45

Question:

the C56106 wiring harness I ordered for my for 2016 toyota sienna does not have the correct plugs to fit into the tail lights. I have pictures of the sienna plugs next to the wiring harness plugs I can share if that would help

asked by: JOSEPH M

Expert Reply:

Hi Joseph!

The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56106 is specifically for the SE Sienna for the 2016 model year. If you do not have the SE, you will actually need the harness I have listed below:

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56261

This will fit all versions of the Sienna for the 2016 model year, except the SE. So this sounds like the one you are looking for. I saw we already sent out a return label for the # C56106, so if you haven't seen that yet, check your spam folder. They like to go there every now and then.

What are you going to be using the wiring for? Towing or a rack with lights?

expert reply by: Lazer S