Demco Brake Actuator - Surge Brake Actuator - DM8609502 Review Video

Thank you for the photos! To replace your Atwood 85738 actuator I recommend checking out the Demco 7K actuator which comes configured for Drum Brakes #DM72VR as well as Disc Brakes #DM62VR and a 2" hitch ball. This system is a bolt on…

I have attached a photo that shows how you determine where the centerline should be between your axles. When determining axle placement, an important factor to consider is the tongue weight. You want the tongue weight of the trailer to be…

Demco Hydraulic Drum Brake Actuator #DM8609502 is a standard 50-degree A-frame coupler-actuator rated for 8000-lbs trailer weight as you noted. It has a primed finish and is intended for weld-on installation. I went to our warehouse and measured the…

Unfortunately the Atwood 85736 cannot be replaced so you'd actually need an entirely new actuator. The closest replacement we have is the Demco Hydraulic Brake Actuator #DM72VR. This actuator has a gross towing weight capacity of 7,000-lbs, a…

Your best route is to replace your entire surge brake assembly as Atwood no longer produces any parts for their brake actuators. The Titan Zinc-Plated Brake Actuator #T47457207K is going to be your best replacement available. It is specific to disc…

Basically you need to lock the outer sleeve of the Demco Hydraulic Brake Actuator #DM8609502 to the inner sleeve to prevent the two from moving. You could run a large bolt through all of the pieces to allow this to happen or some will weld the pieces…

I would use a protractor, see photo, place the protractor on the edge of the inside of one side of the trailer frame and the other inside edge of the trailer frame should be parallel with the 50 degree line on the protractor. Another way to verify…

The Demco Hydraulic Brake Actuator #DM8609502 measures 4 inches at the smaller opening and 15.313 inches at the larger opening. This actuator is for drum brakes, is rated for 8,000 pounds towing, and is made in the USA.

The Surge actuator you currently have installed is an older Atwood model. The cap for the brake fluid confirmed that for me once I saw it. Problem there is that Atwood is no longer in business and no replacements are available, unfortunately. We do…

The Demco Actuator, #DM8509602, does not have a reverse lockout feature so you would need hydraulic free-baking drum brakes on the trailer in order to back up without actuating the brakes. I have included a link to all of the free-backing brakes for…

You are correct that the Atwood 85739 has been discontinued along with all of the replacement parts for it. I recommend replacing it with the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout - Weld On - Disc - 2" Ball - Primed - 7.5K #DX63FR…

The Dexter Actuator part #099-175-20 that you referenced is 3.5 inches wide overall which should be exact same as your Atwood so it would work.