Parts Needed to Convert 4-Way of 2011 Mercury Mariner to 7-Way and Install Brake Controller

Question:

I need your advice on what I need to take my markiner from 4 pin flat trailer wiring to 7 pin wiring . Am towing a travel trailer with electric brakes. Trailer weighs 2200 pounds. Whatbrake controllerand adapter kitdo I need to order. I need this soon.

asked by: RICHARD M

Expert Reply:

You would need to convert the 4-way to a 7-way so that you can install the brake controller. For that you will want the Brake Controller Install Kit and 7-Way Adapter part # ETBC7. I attached installation instructions and an install video for this product as well. This comes with everything needed to make the conversion and install the controller.

For a brake controller I would recommend the Prodigy P2 Brake Controller part # 90885. This is our best selling brake controller because of how well it works and how easy it is to setup. This is a proportional brake controller that senses the amount of braking the tow vehicle is applying and applies a proportionate amount to the trailer brakes.

expert reply by: Jameson C