Looking to Add a Brake Controller and Trailer Wiring to a 1998 Toyota T100 Pickup
Updated 07/29/2026 | Published 07/23/2026
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Question:
Good day, I wanted to confirm before ordering that the following fits my 4wd 1998 toyota t100, for trailer wiring and brakes. No trailer wiring on vehicle. Redarc Tow-Pro Liberty Brake Controller w/ Custom Harness - Dash Knob - Up to 2 Axles - Proportional RED98CR Thank you Fernando
asked by: Fernando B
Expert Reply:
Thanks for reaching out Fernando!
The Redarc Tow-Pro Liberty is one of our most popular brake controllers, so that's a great choice.
For your 1998 Toyota T100, you'll want the Redarc Tow-Pro Liberty Brake Controller # RED52VR. You were looking at the # RED98CR, which includes a custom plug-in harness, but your T100 doesn't have the factory connector needed to use that harness. The # RED52VR includes the universal wiring harness, this option will need to be hardwired into your truck.
You also mentioned your truck doesn't have any trailer wiring; you'll first need the Curt T-Connector Vehicle Wiring Harness # C55513 to add a 4-way trailer connector. This custom harness plugs into your truck's existing taillight wiring to provide a 4-way trailer connection.
Then, because you'll be using a brake controller, you'll also need the etrailer Universal Installation Kit for Trailer Brake Controller # etbc7 to convert the 4-way into a fully functional 7-way. The # etbc7 includes the additional wiring needed for the brake controller output, 12-volt auxiliary power, ground, and reverse light circuit, giving you the connection for a trailer with electric brakes.
What's the story behind the 1998 T100? Are you the original owner?
Also, what kind of trailer do you plan on towing?
Product Page this Question was Asked From
Redarc Tow-Pro Liberty Brake Controller w/ Universal Wiring Harness - Dash Knob - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Splice-In
- Dash-Mounted Knob
- Behind-Dash
- Up to 2 Axles
- Indicator Lights
- Single Trailer Only
- Redarc
more information >
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on Trailer Brake Controller
Fernando B.
7/29/2026
Thank you James, I appreciate you getting back to me. I am going to reassess, and i may opt to put the trailer brake on a different vehicle.