Availability of Custom Wiring Harness for Redarc Tow-Pro Elite Installation on 2023 Subaru Ascent
Updated 03/13/2026 | Published 03/12/2026 >
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Question:
I have a 2023 Subaru Ascent Limited with the dealer installed towing package. I am interested in purchasing a Redarc RED44FR brake controller and want to ensure it will be easy to install on my vehicle, and if I need to purchase any adapters for easier installation. Thank you.
asked by: Andy B
Expert Reply:
Hey Andy! Since you have the tow package on your 2023 Subaru Ascent there is a custom wiring harness available. You will still need the Redarc Tow-Pro Elite Brake Controller # RED44FR. Then you can use the Curt Custom Wiring # C48RJ along with the Redarc Curt Adapter # 331-TPH-019. This will allow you to plug directly into the OEM brake controller port on your Ascent.
If you want to save a little money, the same two wiring harnesses will also work with the Redarc Tow-Pro Liberty # RED24FR. This lacks the "off-road mode" but for most people that isn't necessary.
What will you be towing once the brake controller is installed?

David S.
3/13/2026
I purchased this controller a year+ ago and it has worked flawlessly for me. I do not go off-road, but I do travel coast to coast and this unit is easy to operate and works well with my 5000 lb. Single axle trailer and my 9500 pound dual axle trailer. I would purchase again if I get another vehicle. One of the caveats for me, I had the dealership install it in my truck when new and was told that unit is covered by my vehicle warranty because the dealership did install it.

Jon K.
3/13/2026
This unit is Sooo much better then the under dash models I had in the past. It works flawlessly.
Product Page this Question was Asked From
Redarc Tow-Pro Elite Brake Controller - Dash Knob - Off-Road Mode - Up to 3 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Splice-In
- Dash-Mounted Knob
- Behind-Dash
- Up to 3 Axles
- Indicator Lights
- Single Trailer Only
- Redarc
more information >
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Andy B.
3/12/2026
This is perfect, thanks. I do plan on towing off road from time to time, which is why I wanted to go with the the tow pro elite. Thanks so much.