Correct Replacement for Disc Brake Demco DA66B Actuator

Question

Question:

I am needing to replace a Demco DA 66 B. I see that model is no longer available. My trailer has disc brakes. Is this hitch compatible? Will I need to alter hole patterns, brake lines etc or will it fit the same as my old hitch?

asked by: SEAN Q

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Expert Reply:

The correct replacement for a Demco DA66B Actuator is the Demco Hydraulic Brake Actuator part # DM62VR. This will be a direct bolt-on replacement for the existing model, no drilling required. It uses a three hole pattern but the two holes will match the ones you have now and you can choose to drill the third lower hole or just use the top two. There are only two required. The brake line fittings will be the same.

expert reply by: Conner L

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Answer 1

Since the Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Zinc - 2" Ball - 7,000 lbs #DM62VR is designed specifically for disc brakes you will not be able to use this for your drum brakes. This actuator will provide more fluid…

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Answer 2

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 3

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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Answer 4

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 5

It sounds like you have free backing braking assemblies on your trailer so a lockout at the trailer coupler is not needed. In order to replace the Atwood Surge Brake Actuator 82541, I recommend using the Titan Leverlock Brake Actuator part…

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Answer 6

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 7

The replacement I recommend for an Atwood Surge Brake Actuator 85778 is the Demco Hydraulic Brake Actuator part #DM62VR. It has the same ball size, offers a bolt-on install, and has a greater capacity. The only difference is it has an electric…

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Answer 8

The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…

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Answer 9

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…

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Answer 10

I do have an option for you but the coupler on your trailer is very old and we simply don't carry parts for them anymore as they were discontinued by the manufacturer. Therefore, the only option we can offer is a new coupler, the Demco Hydraulic…

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Answer 11

Yes, if you inserted a rod into the hole that in front of the housing of the actuator of the part #DM72VR that would work as a manual lock out and allow you to reverse the trailer.

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Answer 12

Atwood is no longer in business, which means replacement parts are unfortunately no longer available for your Atwood 61101 surge brake actuator. The best option available if yours is no longer working is to replace the actuator, which you can do with…

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Correct Replacement for Disc Brake Demco DA66B Actuator

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