Looking For A 7 Pole Plug And Play Wiring Harness For A 2012 Lexus RX 350

Updated 05/08/2025 | Published 05/05/2025

Products Featured in This Question

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

(476)

$28.73

Question:

I am looking for a plug and play 7 pole trailer plug and harness for a 2012 Lexus RX 350. Is there such an animal out there, perhaps you have one? thank you

asked by: Mark B

Expert Reply:

Hey Mark,

For your 2012 Lexus RX 350 there are not any 7 pole plug and play options, but what you could do is use a plug and play 4 flat harness with a 4 flat to 7 pole adapter.

The plug and play harness for your vehicle depends on if you have a factory tow package or not. If your vehicle does have a factory tow package you will want to go with # 56083, Curt T-Connector Vehicle Wiring Harness. If it turns out you do not have a factory tow package you would want to go with # 118478, T-One Vehicle Wiring Harness. Any 4 flat to 7 pole adapter like # 37185 will work with those wiring harness's giving you the 7 pole connection you need.

Do you already have a hitch on the vehicle, and just needing wiring?

expert reply by: Nick S

Mark

5/8/2025

thanks for the update Nick. I installed an aftermarket hitch...not sure, but I may have purchased it from you folks. so I will need a # 118478 and a # 37185. can you quote these here for me, or do I need to dig into your website to find this? appreciate the update!