Recommended Drum Brake Actuator for a Trailer Coupler Wider Than 3 Inches

Updated 09/08/2025 | Published 06/04/2025

Products Featured in This Question

Demco Hydraulic Brake Actuator - Drum - Black - 8" Adjustable Channel Down - 8,000 lbs

(51)

$249.61

Demco Hydraulic Brake Actuator w/ Manual Lockout - Primed - 8" Adjustable Channel - 8,000 lbs

(33)

$238.43

Question:

Good evening, I am looking at DM8759138. Along with almost all the other brake actuators. It says for a 3 channel. Mine actually measures 3 3\16 of an inch. Is this like a 2x4 where it doesnt actually measure 2 x4 ? If not, is there a product that you sell that will fit my application? Thanks

asked by: Robert J

Expert Reply:

That's a great comparison Bob but I am sorry, when they say the Demco Hydraulic Brake Actuator item # DM8759138 fits a 3" channel they mean it.

The closest alternative I have is the Demco Hydraulic Brake Actuator w/ Manual Lockout item # DM8759933. Capability and features wise, this is an identical actuator with the only acceptations being this one has to be welded on and it's primed not painted.

What kind of trailer do you have and what actuator are you currently using? You can add this information and any other questions you have in the box below that says Reply to Jerred H.

expert reply by: Jerred H