Oyviny Brake Control Wiring Adapter for 2015–2022 Ram Trucks — 31-inch Plug-in Harness, No Splice

The Oyviny Brake Control Wiring Adapter is a 31-inch plug-and-play harness that lets you install an aftermarket electric trailer brake controller in compatible 2015–2022 Ram trucks without cutting or splicing factory wiring.

If you tow with a Ram 1500, 2500, 3500, 4500 or 5500, this adapter provides a factory-style connection point beneath the dash so you can add a compatible brake controller quickly and cleanly. Built with durable ABS housing, tin-plated copper terminals and a protective nylon sleeve, the harness is made to resist abrasion and weather exposure while preserving the truck's original wiring integrity.

How does this adapter simplify brake controller installation?

Instead of locating and splicing multiple wires, the Oyviny harness mates directly with the truck’s built-in port and the controller’s standard 4-pin plug. That reduces installation time and avoids permanent changes to the vehicle’s wiring, making the process reversible and maintenance-friendly.

• Direct plug-in to stock Ram connector under the dash
• No cutting, splicing, or soldering required
• Standard 4-pin controller end fits many popular controllers
• 31-inch length offers flexible routing and placement

Which brake controllers are compatible with this wiring harness?

The harness uses the common 4-pin brake controller connector accepted by many aftermarket units. It is compatible with a wide selection of Draw-Tite, Tekonsha and Reese Towpower models along with other controllers that use the same standard plug.

• Draw-Tite Activator I/II/III series
• Tekonsha PowerTrac, Prodigy P2/P3, Primus IQ, Voyager
• Reese Towpower 8507111 and 74377
• Other controllers using the standard 4-pin plug

What materials and protection features keep the harness reliable?

Oyviny designed the adapter with longevity in mind: ABS plastic housings and tin-plated copper terminals improve corrosion resistance and electrical conductivity. A black nylon net tube surrounds the wires to guard against chafing and minor environmental exposure, preserving conductivity and preventing short circuits.

• ABS plastic connector shells for impact resistance
• Tin-plated copper terminals for corrosion resistance
• Pure copper wiring for strong conductivity
• Nylon net sleeve to protect against abrasion and wear

Will the harness fit my Ram model and where is it installed?

This adapter is built specifically for Ram trucks model years listed and plugs into the factory port under the dashboard area. The 31-inch cable length gives you room to position the brake controller in the preferred dash location without stressing the connector.

• Compatible with Ram 1500/2500/3500 (2015–2022) and Ram 1500 Classic (2019–2021)
• Also fits Ram 4500/5500 (2016–2021) models with the same stock connector
• Installs under the dash at the built-in connector port
• Pre-wired length supports flexible controller placement

Who is this for: The Oyviny Brake Control Wiring Adapter is intended for Ram owners who tow and want a clean, reversible installation of an aftermarket electric brake controller without modifying factory wiring. It's ideal for DIY installers, fleet technicians and anyone who prefers a standardized 4-pin connection that works with a broad range of popular brake controllers.