Parts Needed to Tow Trailer with Electric Brakes with Semi Truck

Updated 06/14/2023 | Published 06/13/2023

Products Featured in This Question

Mighty Cord Trailer Connector Adapter - 4-Way Flat to 7-Way RV Style - 12" Long

(148)

$20.66

Roadmaster Brite-Lite 3-to-2 Tail Light Converter for Towed Vehicles

(128)

$56.90

Question:

What do i need to hook up a semi with air brakes and it’s electrical connector to a trailer with electric over hydraulic and the rv type of 7 way plug?

asked by: Luis C

Expert Reply:

The Hayes air actuated electric brake controller part # HA100400C that you referenced is a component you will need as this can convert the air brake intensity of your tow vehicle to electric current for your trailer's brakes.

You will need a 7-way that you'll wire to your current trailer brakes like the # A10-7084VP but the semi truck taillight wiring has the turn signals and stoplights on separate circuits so you would need a converter to combine them to match your trailer wiring. For that you'd need the # RM-732.

expert reply by: Jameson C