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Black wiring harness with grey connectors and braided nylon sleeve, shown coiled

CARROFIX

CARROFIX Trailer Brake Controller Harness 2009-2022 Ford F-150 250 350 450 550 Super Duty

SKU CH-BKX7-7NE6P

Plug-in harness connects electric brake controllers to 2009-2022 Ford F-150, F-250, F-350, F-450 and F-550 Super Duty models with a protected nylon-sleeved 4-flat connector

  • Product typeBuffer 43400
  • Plug-and-play harness installs directly into the factory port beneath the dashboard
  • Fits 2009-2021 F-150 and 2017-2022 Super Duty 250 350 450 550 models
  • Nylon mesh tubing shields wires from abrasion for long-lasting durability
  • Tin-plated copper terminals deliver strong conductivity and reduce short-circuit risk
  • Pre-wired OEM connector with zip-ties and instructions enables a quick, complete setup

Plug-In Brake Controller Harness for Ford Trucks

This CARROFIX wiring adapter connects an electric brake controller to the factory port beneath the dashboard on compatible Ford and Lincoln vehicles. The pre-wired OEM connector and standard four-flat plug allow a direct plug-and-play installation without cutting or splicing factory wiring. A nylon mesh sleeve protects the harness from abrasion for long-term durability.

Suits owners adding trailer brakes to listed Ford

Drivers of 2009-2021 F-150, 2017-2022 F-250 350 450 550 Super Duty, 2015-2022 Expedition and 2015-2022 Lincoln Navigator can install a brake controller quickly. Vehicles outside these model years or without the factory brake-controller port cannot use this harness.

Buffer type 43400 defines the internal circuit

The harness is built around a buffer 43400 design with tin-plated copper terminals for stable conductivity. This specification determines electrical compatibility with the vehicle's braking system, so verify that your controller requires this buffer type before purchase.

How it compares

Measured against everything we stock in Auto Cabin & Body Accessories, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 96% of the 344 comparable items (median $37.99).

Specifications

Product
Product typeBuffer 43400

Questions about this item

Which Ford trucks need this harness so the brake controller plugs in?

It fits 2009-2021 F-150 and 2017-2022 F-250, F-350, F-450, F-550 Super Duty models.

Will it work with the Tekonsha controller already in my garage?

Yes, the harness uses a standard 4-flat plug that matches Tekonsha and Draw-Tite brake controllers.

How do I know the connection is solid once it is plugged in?

The tin-plated copper terminals and nylon-sleeved harness give a secure, wear-resistant link that stays seated under the dash.

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