Recommended Redarc Plug In Brake Controller Adapter for a 2021 Toyota 4Runner
Updated 06/21/2023 | Published 06/20/2023 >
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Question:
Looking for a Brake controler for a 2021 tiyota 4Runner TRD PRO. Complete plug ig and done.
asked by: John C
Expert Reply:
Since your 2021 Toyota 4Runner has the factory tow package you will be able to use the Plug-and-Play Wiring Harness for Redarc Brake Controllers item # RED49FR. This plug in adapter will allow you to install the Redarc Tow-Pro Liberty item # RED24FR or Tow-Pro Elite item # RED44FR. The factory connector is located above and to the left of the emergency brake pedal as shown in the provided photo.
I have linked an installation and set up video below.
You may also be interested in the Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob item # 331-TPSI-002. This is designed specifically to fit in one of the knock out panels on Toyota vehicle's dashes.

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
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