Parts Needed to Install a 7-way on a 2022 Subaru Outback Wagon

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Question:

I have a 2022 Subaru Outback Wagon, I don't have any wires at the back and need a 7-way connection back there. When I go to the wiring section I only see 4-way connectors, how do I get a 7-way? I need the 7 way because I want the 12v circuit back there.

asked by: Justin E

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Expert Reply:

You can absolutely get a 7-way connection at the back of your 2022 Subaru Outback Wagon. The reason you are only seeing 4-way adapters is because your Outback Wagon does not have factory wiring. So essentially you will need to install a 4-way flat like the T-One Vehicle Wiring Harness with 4-Pole Flat # 118467. You would then use an adapter like the Adapter 4-Pole to 7-Pole # 37185 to get the 7-way. But because you mentioned needing the 12v circuit you will be better off using the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation # ETBC7L instead of the # 37185. The reason for that is because the # ETBC7L will come with the wiring needed to complete the 12v circuit.

If you are in need of a brake controller, I recommend the Tekonsha Prodigy P3 Trailer Brake Controller # 90195. This is going to give you a brake controller that activates the trailer brakes in proportion to your vehicle's braking action.

expert reply by: Scott S

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Answer 1

We do have everything you need to install a 7-Way on your 2020 Subaru Outback Wagon so you can utilize a brake controller but we need to start off by making sure you have a 4-Way for the basic trailer lighting functions. If you don't already…

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Answer 2

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 3

The 4-way trailer wiring kit I recommend for your 2018 Subaru Outback wagon is the Tekonsha kit part #118467 because it installs very easily and has the most reliable converter box of all of the kits we offer. This means it will be less likely to…

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Answer 4

Absolutely not. You're going to be covered by the Magnuson–Moss Warranty Act. It states that manufacturer's cannot void the entire warranty of a vehicle simply because they installed an aftermarket component. The Draw-Tite Trailer Hitch item…

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Answer 5

It sounds like you may already have a 4 way connector on your vehicle, which is half of the battle. In order to operate the Curt Echo Mobile Wireless Brake Controller #C51180 you will need an almost fully functional 7 way connector; using something…

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Answer 6

The Bearing Buddy Bearing Protectors #BB2441 provide premium protection for your wheel bearings. It is still recommended that you inspect the bearings, races, and seals every 12 months or 12,000 miles to ensure reliable performance on your trailer.…

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Answer 7

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 8

Most likely the fault code is due to a wiring issue on the 5th wheel trailer. The first thing I would check is the wiring on the trailer for any breaks of splices that could be causing the short. Next I would make sure there is no corrosion inside or…

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Answer 9

Since your 2021 Subaru Outback Wagon does not have factory trailer wiring you'd need to first install a 4-way with part #118467 and then convert it to a 7-way with a 7-way adapter like the part #37185 to give you the 7-way. But since you are…

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Answer 10

The difference between sensitivity and max output for the Curt Echo brake controller part #C51180 is that max output is the max braking power the controller would put out if it felt like it needed to apply them as hard as possible. So this needs to…

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Answer 11

We do have what you need to add a 7-way trailer connector to your 2018 Subaru Outback Wagon but there isn't a specific custom harness that fits. If right now the Outback has no trailer wiring at all the easiest way to add a 7-way is to start with…

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Answer 12

I do have an option for you Trevor but there is not a custom fit 7-Way harness available for the 2020 Subaru Outback Wagon. You will need to convert Tekonsha 4-Pole flat trailer connector part #118467 to a 7-way connector with part #ETBC7. The…

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Parts Needed to Install a 7-way on a 2022 Subaru Outback Wagon

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