10 Best Electric Brake Controllers 2025 in the United States

The Tekonsha 90160 Primus IQ is a proportional brake controller ideal for trailers with 1 to 3 axles. This means it adjusts the braking power in proportion to the vehicle's braking, offering smoother and safer stops. It features a Plug-N-Play port for easy connection with 2-plug adapters, although it's worth noting that a T-connector, which is essential for installation, is sold separately.

The installation is made simpler with the included snap-in dash mounting clip and hardware, but some users may still find it somewhat complex if they're not familiar with vehicle wiring. The digital LED readout is a useful feature, providing clear diagnostic information and illuminating when issues occur. Additionally, the controller works proportionally in reverse, which is a handy feature when maneuvering a trailer.

The Boost feature is another plus, allowing for increased initial braking power when needed, which can be particularly useful in heavy braking situations. However, users should be aware that the product has been available since 2007, so while it is trusted and popular, it might lack some of the newer technological advancements found in more recent models. The controller's universal fit and smooth exterior design add to its appeal, making it a good choice for a wide range of vehicles and setups. The Tekonsha 90160 Primus IQ is a reliable and user-friendly option for those looking to enhance their trailer braking system, though it may require an additional purchase for full installation.

The Tekonsha 8507120 Brakeman IV is a time-delay electric brake controller designed for trailers with 1 to 4 axles, making it suitable for light to medium towing jobs. It supports a wide range of vehicles including Ford, GM, Chevy, Dodge, RAM, Toyota, and Jeep, which is great if you own one of these popular brands. Its time-delay braking applies power gradually over a set time, which works well for basic towing but may not offer the smoothest or most responsive braking compared to proportional controllers.

Installation is fairly easy thanks to a Plug & Play port, though the wiring harness must be purchased separately, which adds to setup steps and costs. The unit’s compact design lets you mount it almost anywhere within driver reach, and the digital display is straightforward, showing brake power levels and connection status with clear red and green lights. You can also manually apply the trailer brakes using a lever, which is helpful for controlling stopping power in tricky situations.

The Brakeman IV covers essential features and supports up to 4 axles (8 brakes), but it doesn’t offer advanced adjustable braking curves or proportional braking that some higher-end models have. If you are looking for a reliable, easy-to-use brake controller for lighter hauling needs with simple installation, this model is a solid choice. For those who require smoother braking performance or more customization, other options might be more suitable.

The TEKONSHA 8508220 Brake-EVN Proportional Brake Controller is a versatile and advanced device suitable for a variety of vehicles including Ford, GM, Chevy, Dodge, RAM, and Toyota. It supports trailers with 1-4 axles, making it adaptable for different towing needs. A standout feature is its proportional braking capability, which uses an internal inertia sensor to automatically adjust braking intensity based on the vehicle’s deceleration, enhancing safety and control during towing.

The digital LED display is easy to read and provides real-time diagnostics and alerts, ensuring that you stay informed about the system’s status. Additionally, the manual braking option gives you the ability to apply trailer brakes independently in critical situations by moving a lever, adding an extra layer of control.

Installation is streamlined with a Plug & Play port, though it’s important to note that the vehicle-specific wiring harness is sold separately, which could add to the overall cost and installation effort. While the device is compact and lightweight, the absence of the wiring harness means users need to ensure they purchase compatible parts for their specific vehicle. User feedback is very positive, with a strong average rating of 4.6 out of 5 stars from over 300 reviews, reflecting general satisfaction with its performance and reliability. This brake controller is ideal for those who need a reliable and adaptable braking solution for various towing scenarios, though they should be prepared for the additional step of purchasing and installing the appropriate wiring harness.