Hitch and Wiring Installation on 2007 Lexus RX350 With Factory Towing Prep Package

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Question:

Folks, Im getting ready to install a trailer hitch on my 2007 Lexus RX350 FWD. The SUV includes the $160 towing prep package. Can I presume that the factory installed towing package has the wiring plug that brings the necessary 4 wires to connect to a 4 wire connector, your part 18002? I dont want to diginch down to that point until I have the parts needed to install the wiring. I see from your video that I need to cut the plug off and hard wire to your harness - Im fine with that.

asked by: Robert C

0

Expert Reply:

Exactly what constitutes a towing prep package can vary widely among vehicle makers and models and can depend on whether the additional equipment was factory- or dealer-installed. Sometimes a 'tow-package-equipped' vehicle may still need fuses and/or relays installed to activate the wiring.

There is a good chance the wiring is in place already. You can check under your rear bumper for any signs of wiring for a trailer connector and test them using a circuit tester like # PTW2993, or you can skip that step and simply install a plug-and-play harness like # C55563 from Curt. This 4-pole harness plugs in at the vehicle tail light assemblies and then requires only one additional wire to be run up to the engine compartment where it will connect through the supplied fuse holder to the battery's positive terminal. This kit includes all components required for installation: the harness, wiring, connectors, zip ties and fuse.

I have linked the written instructions for this item as well as two helpful articles that explain how to route the harness's power wire and how to troubleshoot 4-pole installations. A video is linked also.

We offer three different brands of 2-inch Class III hitch receiver for your 2007 Lexus RX350 FWD and all can be seen on the link provided. The most popular is the Curt # 13530. Your vehicle itself may have different weight capacities than the hitches; always go by the lower rating if they differ.

expert reply by: Adam R

0

Answer 1

Hey Todd, I can assure you that the Tekonsha part #TK74FR and the Curt #C55245 that both are a confirmed fit for your 2020 Toyota Highlander are wired the same and would work identically. If it were me I would go with the Tekonsa just because…

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Answer 2

The 30 amp fuse marked for towing that is located in the fuse box of your 2007 Lexus RX 350 does not necessarily indicate if the vehicle has the factory tow package installed. The actual features of a tow package vary greatly between different auto…

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Answer 3

The three hitch options for your 2007 Lexus RX 350 - etrailer #e98857, Curt #13530 and Draw-Tite #75153 - all share identical capacities and will install in the same way. All include the mounting hardware. From these choices my preference is the…

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Answer 4

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 5

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 6

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 7

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 9

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 11

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 12

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Hitch and Wiring Installation on 2007 Lexus RX350 With Factory Towing Prep Package

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