Is There a Way to Install Brake Controller on Second Trailer of Double Tow Setup

Updated 12/29/2025 | Published 12/09/2025

Products Featured in This Question

Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional

(1918)

$289.95

Question:

Im double towing a 16foot enclosed trailer with SxS inside it has has trailer brakes and i already have a flat 4 at back of 5th wheel from towing a small utility trailer. Can I use the flat 4 to power a 2nd brake controller inside enclosed trailer then install female 7 pin from controller for brakes and lights?

asked by: Scott L

Expert Reply:

Hey Scott, double towing gets a little tricky but what I would probably do is use a wireless brake controller like the Curt Echo Mobile # C51180 on the second trailer as that would be the only reasonable way to activate a second controller since the needed circuits aren't there for a standard controller. You'd need to install a 7-way like the part # 37185 at the rear of the first trailer and you'd need to have all of the stop/turn circuits ran to it, ground and 12 volt power and then once synced to your smart phone you'd be able to control it.

expert reply by: Jameson C

Jameson C.

12/29/2025

Hey Scott, how did things go with the Curt Echo wireless brake controller on your second trailer? Your update could make it easier for others figuring out double towing setups like yours.