Replacement for Atwood Surge Brake Actuator

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Question:

Atwood MPD 85778 - what replacement hitch should I purchase to replace the above hitch. Thank you

asked by: Pam Y

0

Expert Reply:

The Atwood MPD 85778 is not actually a model number for their actuator, it is a literature number - basically a manual number so I wouldn't be able to tell you what a direct replacement would be.

You will need to match your actuator to either drum or disc brakes, the weight capacity, coupler size and what size tongue it bolts onto.

For example, if you had disc brakes, a 3" wide channel tongue, needed a 7,000 lb capacity and had either a 1-7/8", 2" or 50-mm hitch ball a great option would be the Dexter # 099-175-20.

Meanwhile, if you had drum brakes, needed something with a heftier 12,500 lb capacity and had a 2-5/16" ball you would want the Titan # T2477600.

If you get back to me with what type of brakes you have, capacity you need, hitch ball size, where you are mounting it and if you need an electric lockout I'll be happy to get back to you. I have also added a link to our selection of actuators for you to take a look at.

expert reply by: Kyle S

0

John A.

4/18/2020

I need for drum breaks 6000lb 2ball

Reply

Chris R.

4/20/2020

For those specs we have the Titan Bolt-On # T43397007K Actuator that will work really well. This is a 6,000 pound capacity coupler that accept 2" hitch balls and are designed for drum brakes on the trailer.

Reply

Dave S.

7/16/2020

Hello eTrailer, Can you please give me the part number for an Atwood Actuator brake drum...3 inch tongue... 2 inch ball... 6000 lb. Thank you,

Reply

Chris R.

7/21/2020

Based on the specs you listed the Demco # 8605001 will work great as a replacement. Atwood no longer makes actuators so this will be your best option.

Reply

Answer 1

For a trailer that will be used in saltwater, the best option for rotors, hubs, and calipers is those made of stainless steel. Galvanized coating is the second best option for saltwater, and then dacromet coatings, which provide extra resistance to…

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Answer 2

Since you are wanting to convert your hydraulic drum brakes to disc, you will need to replace your actuator with one that is rated for disc brakes like the Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs…

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Answer 3

The Dexter Brake Actuator part #099-175-20 replaced the Titan 60 that has a master cylinder with a fitting at the end. The fitting is a 3/16 inverted flare where the brake lines connect to. You do not need an extra fitting when you use the actuator.…

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Answer 4

The Atwood master cylinder 85841 is no longer available. Atwood doesn't product any actuator components anymore so it's getting harder and harder to track down replacement parts. We do not have any other replacement units that would be…

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Answer 5

The Replacement Master Cylinder Assembly #T4395100 will not work to replace your Atwood master cylinder model 85841. Since replacement parts for your actuator are obsolete, your only option is to replace the entire actuator assembly. The Demco…

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Answer 6

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 7

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 8

Hey Dwyane yes that is necessary unfortunately. We do have disc brake kits like the DeeMaxx Disc Brake Kit #DE68YR which will work with 7,000 lb axles that uses specific bearings. The last couple of things you'd need is a brake line kit…

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Answer 9

You can convert surge brakes to an electric over hydraulic braking system. To do this, you will need an electric over hydraulic actuator and a brake controller. For an electric over hydraulic actuator, I recommend looking at the Carlisle HydraStar…

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Answer 10

Hey Alan, we actually have a kit for exactly what you are looking for with the part #HYD44VR. This kit was designed for converting a trailer with tandem 5.2k axles to electric over hydraulic disc and comes with everything needed so it's a one…

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Answer 11

First you will need to remove the old hydraulic equipment. Remove the surge coupler or actuator, remove all the lines, and finally remove the brake assemblies. If you have 10 inch diameter hub and drums, you may need to replace those as well. If you…

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Answer 12

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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Replacement for Atwood Surge Brake Actuator

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