Troubleshooting Plug Configuration on Hydrastar Vented Marine Electric Over Hydraulic Actuator

Updated 10/14/2022 | Published 10/02/2022

Products Featured in This Question

Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes - OEM - 1,600 psi

(28)

$1232.07

Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat

(201)

$20.70

Question:

I bought a new 7 way plug from the auto part store and it is a different size then the seven way plug that comes with the Hydrastar seven way plug why are there three single pin plugs and one female for the brake disconnect witch one does it go to the battery box I can not figure out thi plug and play

asked by: Randy C

Expert Reply:

The Hydrastar Vented Marine Electric Over Hydraulic Actuator for Disc Brakes # HS481-8067 is designed to be used with vehicles that have a factory OEM brake controller, which would mean there is already a 7-way on place. If your truck did not have a 7-way then you would not have the OEM brake controller. There are different 7-way options, it sounds like you may have picked up the wrong size from your auto parts store. You would want a 7-way like the # 337TC1474P.

The only 3 pin plug that I see comes from the control adapter module which is what allows this to be used with the OEM brake controller. The single pin female connectors, one goes to the breakaway switch and the other goes to the actuator.

expert reply by: Scott S