Recommended Actuator to Replace my Knott Trailer Actuator

Updated 05/28/2026 | Published 05/19/2026

Products Featured in This Question

Demco Hydraulic Brake Actuator w/ Drop - Disc - Zinc - 2" Ball - 8,000 lbs

(28)

$327.80

Question:

I need to replace the surge brake actuator on my 2018 Coyote trailer. Its dual axle and has disc brakes. The current actuator is made by Knott, which I understand is no longer produced. I need help identifying the proper replacement actuator.

asked by: Michael C

Expert Reply:

Thanks for reaching out Michael,

There's few things we want to know to ensure you get the correct replacement.

What is the current Hitch ball size 2" or 2-5/16"?
Does the actuator bolt or weld on to the trailer?
What is the mounting bolt pattern and/or spacing?
What's the trailer weight capacity?
Does your current actuator have a reverse lockout solenoid?

If you'd like to send a few photos of the current actuator, the mounting area and any model, serial number or stickers (if they’re still readable), we can match you with the replacement for your trailer.

What do you usually tow with the Coyote?

expert reply by: James D

Michael C.

5/27/2026

Hi James - I replied to your email last Friday . Answered your questions and provided pictures. Any updates on your end?

James D.

5/28/2026

@MichaelC my apologies, The Demco DA86 Brake Actuator for Disc Brakes w/ Lockout, Solenoid, and Cover - 2" Ball - 8,600 lbs # dm78cv is the correct replacement based off the specs from your Knotts actuator. Because the Knotts mounting holes are different, you would need create new mounting holes for the Demco to properly mount. Again apologies for the delay and let me know if you have any additional questions. appreciate you choosing etrailer!