Best Way To Add A Reverse Lockout To A Demco DA86 Surge Brake Actuator

Updated 08/12/2026 | Published 08/08/2026

Question:

I have a Demco DA86 Trailer Brake Actuator. Is there a way to lock out the brakes when backing up?

asked by: Ray M

Expert Reply:

Hey Ray, thanks for reaching out. Yes, there is! To add a reverse lockout to your Demco DA86 actuator, you can use the following:

- Reverse Lockout Solenoid Kit for Demco DA66B and DA70 Hydraulic Brake Actuators - Non-Bypass # DM5836

This comes with the reverse lockout solenoid and the housing to cover it. The solenoid wires to the reverse light circuit on your tow vehicle. That way the brakes will be locked out every time you shift into reverse.

What kind of trailer do you have, and what vehicle are you towing with?

expert reply by: Jesse M