Recommendation on a Surge Coupler that is Rated to Work on a Trailer w/ Disc Brakes

Updated 05/15/2017 | Published 05/13/2017

Products Featured in This Question

Demco Hydraulic Brake Actuator w/ Drop - Drum - Zinc - 2-5/16" Ball - 20,000 lbs

(46)

$539.95

Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball - 20K

(129)

$540.06

Question:

Can I use this on a trailer with disc brakes? The trailer has brakes on 4 wheels.

asked by: Peter S

Expert Reply:

I found a surge coupler that will work well on your trailer. However, the part that you referenced, # DM8204011, is designed only to work with drum brake systems. Disc brake systems need higher psi for the calipers to activate the brakes and drum surge coupler cannot supply the correct pressure.

I recommend the Demco Hydraulic Brake Actuator w/ Drop for Disc Brakes, # DM8204311. This surge coupler is almost identical to the one you referenced, except it is rated to be used with disc brakes.

expert reply by: Jared P