2026 BMW 4 Series Brake Controller

Features:

The large buttons and colored LCD display on this proportional brake controller make it easy to see and easy to use. Store and customize your settings so you can easily swap out trailers and drivers and get towing.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

Towing? There's an app for that. This brake controller connects to your phone with Bluetooth so all your settings are right in your hand. The unit plugs into your 7-way for a one-step installation with no wiring.

Installation Notes:

You need item ETBC7L ($93.86) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

Wireless brake controller mounts on your trailer to keep your cab clutter-free. Keep towing simple and convenient with a handheld, Bluetooth remote control. Nothing installs in your vehicle, so you can tow with any truck that has a 7-way.

Installation Notes:

You need item ETBC7L ($93.86) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

This proportional brake controller is designed to keep towing simple. Includes an LED braking indicator, a slide-bar manual override, and a knob to adjust braking power. Mounts easily within a 90-degree vertical range.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

This unique brake controller mounts on your trailer instead of in the cab so you can tow your trailer using any truck. You'll control your settings from the handy key fob remote.

Installation Notes:

You need item ETBC7L ($93.86) to install your controller.

Features:

This time-delayed brake controller is designed to mount at any angle, even upside down. The controls are all up front for easy access, including a slide-bar manual override and a thumbwheel for braking output. LED indicator shows your braking status.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

This proportional brake controller automatically syncs to your vehicle's computer network for smooth, precise braking. Low-speed brake adjustment gives you 2 settings for different speeds. Plug-and-play controller mounts in any direction.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

Towing? There's an app for that. This brake controller connects to your phone with Bluetooth so all your settings are right in your hand. The plug-and-play unit mounts under your dashboard, out of sight and out of your way.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

This is one of our favorite brake controllers, with flawless braking and a tiny dash knob that looks like it came straight from the factory. It's so easy to adjust your settings or activate manual override.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

This stout brake controller has easy-to-reach button controls up front and a simple slide-lever manual override. The digital display is large and easy to read. And the included splice-in harness and mounting bracket make for simple installation.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.

Features:

Mount the control knob of this proportional brake controller on your dash for a from-the-factory look, and install the main unit out of sight behind the dash in any position or angle. Adhesive backing gives you the option of a drill-free install.

Installation Notes:

You need item ETBC7 ($124.34) to install your controller.

You may also need a 4-Flat connector to complete your wiring.