Review of Tekonsha Custom Fit Vehicle Wiring - Trailer Hitch Wiring - 118290 Video

Yes, there is a plug in 7-way connector for your 2019 Subaru Ascent. It is the Tekonsha OEM Replacement Vehicle Wiring Harness with 7-Way Trailer Connector item #118290. It uses the same connector as the 4-ways. I have linked the installation…

Basically all of the instructions for trailer wiring like the Tekonsha #118290 for your 2020 Subaru Ascent are kind of vague when it comes to routing the power wire to the battery which is why we came up with a helpful article on this (see attached).…

There are two different 7-way trailer wiring harnesses for a 2019 Subaru Ascent dependent on whether or not you have the factory tow package. If you do have the factory tow package then you should be using the Tekonsha OEM Replacement Vehicle Wiring…

Since the wiring for the reverse lights on your 2022 Subaru Outback are in the rear hatch door you will need to access the wiring where it travels from the hatch door into the vehicle. The best way to identify the correct wire is with a Test Light…

Due to the thinner gauge wiring of the #118290 for the 12 volt accessory circuit you'd be limited to the 20 amp charger for your battery.

The correct wiring harness needed will depend on the type of trailer you're wanting to pull. If you're pulling something basic like a small utility trailer and only need a 4 pole trailer connector, the #118790 would be what you need. However,…

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

I recommend the etrailer Trailer Hitch Receiver #e55ZR for your 2022 Subaru Ascent Premium. This Class III hitch has a 2" receiver and is completely hidden when the center bumper cover is attached. It has a maximum gross trailer weight of 5,000…

Yes, we do have a wiring harness that has both a 7-way and a 4-way for your 2020 Subaru Ascent. However, you will need a 4-way connector on your car before this will work though. I recommend the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat…

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…

Your 2004 Sierra is factory wired for brakes, but you will need a brake controller to actuate them. I would recommend a proportional controller, like the Tekonsha Prodigy P2, part #90885. A proportional controller uses an accelerometer to determine…

If your 2022 Subaru Ascent has the factory tow package with the factory installed 7-way trailer connector, it will have the factory brake controller connector located above the driver's side kick panel forward of the hood latch as shown in the…