Trailer Wiring Recommendation for 2018 Lexus RX 350L Without Tow Package

Question

Question:

What product would be required to install a towing wire harness for a RX 350L without a factory tow package. I have already installed a hitch.

asked by: Marvin S

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Expert Reply:

The best solution we have for trailer wiring for your 2018 Lexus RX 350L without the factory towing package is the # 119250KIT which uses sensors to tap into the vehicle wiring instead of splices.

expert reply by: Jameson C

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Answer 1

If you are sure your 2018 Lexus RX 350L does not have the factory tow package then your only option is to hardwire a 4-way to your vehicle with a universal kit, the Vehicle Wiring Harness #C59236.

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Answer 2

I'm happy to help you get your RX 350 ready for pulling your new camping trailer and I wish you many good times in the future. Starting with a hitch, I recommend the USA-made etrailer Class III hitch #e94AR for its simple no-drill installation…

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Answer 3

I'm not sure what the difference would be between having a tow package vs having an active tow package save that in some models you might need some fuses or relays to make the tow package active. For your 2018 Lexus RX 350 it will either come…

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Answer 4

Trailer taillight kits like the part #TLL56RK that have 3 wires can install on trailers that have 2 wire setups pretty easily. What you would need to do is run the white wire of this kit to the mounting hardware and you'd be set. What you have…

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Answer 5

The Tow Ready Converter #118158 will work well for your application. This converter needs to be installed downstream, so to speak, of your trailer connector. This converter box is not designed to be exposed to the elements, so you will want to mount…

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Answer 6

The white wire on your new trailer light assembly is indeed for ground. Your old tail light grounded through its mounting hardware so it didn't use a separate wire for this purpose. You just need to attach the white wire on the new light to a…

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Answer 7

Usually when a light has 3 wires one of them is a ground, one is running lights, and one is brake/turn signals. And usually on a light with 2 wires it will ground through the mounting hardware and one wire will be for running lights and the other for…

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Answer 8

A lot of trailer lights have 3 wires. One wire for running lights, one wire for turn signal and brake lights, and one wire for ground. Check the back of the light assemblies because it might indicate the functions of the wires. Other lights may only…

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Answer 9

Yes it does. Our website can be fun sometimes. I can confirm that the Draw-Tite Trailer Hitch item #75540 does fit the 2019 Lexus RX 350 including the F Sport model. I have linked an installation video below so you can see how to get it set up. If…

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Answer 10

For your 2022 Lexus RX 350 the Curt T-Connector Vehicle Wiring Harness #56083 will connect to the factory tow package with no other parts required. This will give you a 4-way flat trailer connector on your Lexus. Currently the T-One Vehicle Wiring…

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Answer 11

The hitch receiver that I recommend is the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" #C73DR. This hitch receiver has a maximum tongue weight of 525 lbs and a maximum gross trailer weight of 3,500 lbs. or 4000 when using a weight…

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Answer 12

Yes, the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector #118255 will fit your 2015 Lexus RX 350 that does not have the factory tow package.

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Trailer Wiring Recommendation for 2018 Lexus RX 350L Without Tow Package

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