6 Best Trailer Brake Controller in 2026: A Practical RV Guide

The Kohree is a proportional controller sold as a split design: a small LCD display you place on the windshield and a separate control unit you mount out of sight. The listing names 1-4 axle trailers and 9 levels of boost, and says the display and controller each carry two 32-bit chips.

Compared with the CURT Discovery below it, the Kohree senses tow-vehicle deceleration instead of ramping on a timer, so braking follows how hard you actually stop. The trade is a higher price and a two-piece install, since you have to route the display cable and mount both parts.

The CURT Discovery Next is a name-brand time-delay controller, meaning it ramps braking up over a set time after you press the pedal. The listing calls power and ramp time fully adjustable, says it runs 2-8 brakes (1-4 axles), and describes a low-profile body with no internal moving parts and no leveling needed.

Against the Kohree above it, you give up proportional response and gain a simpler, flatter unit that can be mounted at nearly any angle. Against the cermep below it, you get a brand with a plug-and-play listing rather than a copy of another maker's design.

Heavy loads and frequent mountain driving are where a proportional unit feels smoother.

The cermep is sold as a direct replacement for the Tekonsha 90160 Primus IQ, which makes it a third-party clone, not a Tekonsha product. The listing describes proportional braking with an inertia sensor, a real-time diagnostic display, and support for 2, 4, or 6 brakes (1-3 axles).

The Bydorunce 8508211 is the lowest-priced actual controller here and lists proportional braking, an LED display, adjustable boost, and a manual override lever. It supports 1-4 axle trailers (2-8 brakes) and states that no leveling is required.

It is an OEM-style wiring harness with a factory connector on one end and a brake control plug on the other, for vehicles that already have an under-dash brake controller connector.

The listing says it works with REESE and Tekonsha controllers and with time-proportional and time-based types, and it has a positive locking connector.

The Oyviny adapter is a vehicle-specific harness whose listing names 2015-2022 Ram 1500, 2500, 3500, 4500 and 5500 models. It is also not a controller: it plugs between your brake controller and the factory connector without cutting or splicing.

It uses a standard 4-pin plug that the listing says fits several Draw-Tite and Tekonsha controllers, and it is 31 inches long.