Best Way to Add a 7-Way Connector to a 2022 Subaru Outback

Question

Question:

It currently comes with a 4 plug harness but I need it to be a seven plug. Any suggestions on how to achieve this or what parts to buy? Subaru dealer said go aftermarket.

asked by: Wendy L

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Expert Reply:

Yes, we have exactlly what you need to add a 7-way connector to your 2022 Subaru Outback Wagon. Since you already have a 4-flat connector you will want the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires item # ETBC7. The kit includes a pre-wired 7- and 4-way trailer connector that mounts easily at the rear of your Subaru with an included bracket. This kit is designed for use on a vehicle with an existing 4-way flat trailer connector and plugs directly into it. You will then connect the blue wire to the blue wire on the brake controller, connect the black wire to the positive post on your Outback's battery, the white wire to ground, and the yellow wire to vehicle's reverse circuit if applicable. This will provide you with the ability to control your trailer's brakes and also provide you with a 12v power wire for you trailer's accessory lights.

If you need a brake controller I highly recommend the Redarc Tow-Pro Liberty Brake Controller item # RED24FR. The Liberty has a unique installation method where the only part visible is the control knob. The rest of the unit is hidden away behind your dash. This is a proportional brake controller that activates your trailer's brakes when your Subaru decelerates. I have linked an installation video below. You will also need the Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers item # RED69FR.

expert reply by: Jerred H

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Answer 1

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…

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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 Curt Echo Brake Controller part #C51180 is a great choice because of its convenient and simple installation. The 7-way connector that you mention part # A10-7084VP pugs into the 4-way connector you purchased part #C56217. The white wire from the…

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Answer 4

To use the Curt Echo Wireless Trailer Brake Controller #C51180 your vehicle only needs 12 volt, ground, and turn signals connected to its 7-way socket. What this means is you do not need the brake signal from the 7-way. For example, if you used a…

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Answer 5

That's a good question, and in order to use the Curt Echo Mobile Trailer Brake Controller #C51180, it requires simply the 12 volt, ground, and turn signals be connected to the 7-way on your truck. So you will need the 12 volt connected that you…

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Answer 6

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 7

The first thing you will need for your 1999 D250 is a 4-way. The Curt T-Connector Vehicle Wiring Harness #C55317 plugs into the connection points behind your rear bumper and will allow you to power your trailer's signal lights. Once the 4-way is…

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Answer 8

The best brake controller option to go with is one that activates the brakes proportionally instead of time delayed. A proportional brake controller will activate the trailer brakes at the same time and with the same intensity as the tow vehicle…

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Answer 9

If you have a vehicle specific wiring harness for a brake controller then that would indicate that you have a factory tow package and subsequently would already have a 7-way at the back of your vehicle. The universal 7-way connector #ETBC7 is meant…

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Answer 10

The Redarc Tow-Pro Liberty #RED24FR is the way to go over the Elite #RED44FR as you get the nicer functions of the Elite at a lower price. The Elite has the ability to be the more preferred proportional style of controller as well as a time-delayed…

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Answer 11

Yes, we do. To add a hitch to your 2024 Toyota Grand Highlander, I recommend the Curt Trailer Hitch item #C26VV. This hitch is custom fit and bolts to your Toyota with included hardware. This is a class III hitch with a 2" receiver. It has a…

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Answer 12

To add a hitch to your 2024 Subaru Outback, I recommend the etrailer Hitch item #e25TR. This hitch is custom fit and bolts to your Subaru with included hardware. This is a class III hitch with a 2" receiver. It has a 3,500 lbs towing capacity…

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Best Way to Add a 7-Way Connector to a 2022 Subaru Outback

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