Lrichy Proportional Trailer Brake Controller 8508211 — 2/4/6/8-Brake Compatible, LED Display & Auto-Sensing

The Lrichy 8508211 is a proportional electric brake controller that automatically matches trailer braking to your tow vehicle’s deceleration for smoother, safer stops on 1–4 axle trailers.

Designed as an upgraded replacement for the 8508220 Brake-EVN and an improvement over time-delay units such as the 8507111, the Lrichy 8508211 delivers adaptive braking for trailers with 2, 4, 6, or 8 brakes. It works with a wide range of vehicles including Ford, GM, Chevy, Dodge, RAM, Toyota, and Jeep. The unit reads vehicle motion with internal sensors and applies trailer braking proportionally, offering better control on grades and in mixed-speed traffic.

How does this controller improve braking compared with time-delay units?

Unlike time-delay controllers that apply a fixed braking pulse, the Lrichy proportional controller measures your vehicle’s brake force in real time and delivers matching brake output to the trailer. That results in smoother transitions and reduced trailer sway during sudden stops.

• Internal motion sensors for instant brake-response matching
• Digital LED display for current output and diagnostics
• Adaptive compensation for uphill and downhill braking

Is the 8508211 compatible with my trailer and tow vehicle?

This controller supports trailers with 2, 4, 6 or 8 brakes (1–4 axles) and is built to replace the Brake-EVN 8508220. It works with most major truck brands, but vehicle-specific harnesses are not included, so confirm connector compatibility before purchase.

• Fits trailers with 2–8 brakes (1–4 axles)
• Works with Ford, GM, Chevy, Dodge, RAM, Toyota, Jeep and similar vehicles
• Replaces 8508220 and improves on 8507111-style time-delay units

What features help with setup and everyday use?

The 8508211 is built for straightforward installation and operation: it ships with mounting brackets and screws, offers a plug-and-play port for quick disconnection, and uses a clear LED digital display to show settings and alerts. Manual braking is available via a lever for immediate trailer brake application.

• Included brackets and screws for secure mounting
• LED display shows settings, output level, and fault codes
• Manual lever for immediate, adjustable braking control

What support and warranty are provided?

Lrichy backs the controller with a two-year warranty and a customer-focused return/exchange policy. The company offers direct support for installation questions or troubleshooting through their sales channel.

• 2-year warranty against manufacturing defects
• Free exchange and refund policy for qualifying issues
• Customer support available via seller contact

Who is this for: The Lrichy 8508211 is aimed at drivers who tow regularly and want more consistent, predictable trailer braking than time-delay controllers can provide. It's ideal for owners of light-duty trucks and SUVs towing utility, boat, or cargo trailers with 1–4 axles who value smoother stops, clearer diagnostics, and easy mounting. Note: if your vehicle requires a manufacturer-specific plug harness, plan to source the harness separately for a plug-and-play install.