Replacement For Atwood 85091 Actuator as There Are Not Replacement Parts

Question

Question:

I Need a replacement Atwood MPD 85091 master cylinder, and cant find one.

asked by: Brian

0

Expert Reply:

Atwood is out of business which is why there isn't a replacement master cylinder to be found. So you'll have to replace your actuator with an appropriate option, like the Demco Hydraulic Brake Actuator - Disc # DM62VR or Drum # DM72VR depending on what type of brakes you have.

I have added a link below to our entire selection of actuators.

expert reply by: Kyle S

0

Answer 1

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…

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Answer 2

I was able to go out to our warehouse and measure the Demco Hydraulic Actuator #DM72VR for you. I found that the center of the mounting hole was 1-5/16 inches away from the master cylinder, so I recommend drilling the center of your mounting hole at…

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Answer 3

Your Atwood brake actuating coupler should not have started leaking brake fluid based on your manual lockout being engaged, so that is most likely not the issue. The only issue from leaving that lockout engaged should be the lack of trailer brakes,…

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Answer 4

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 5

Thanks for the photo. That is a great help for getting you the correct replacement. I recommend the Demco Hydraulic Trailer Brake Actuator - Drum Brakes - Zinc Plated - 2" Ball - 7,000 lbs #DM72VR for a zinc plated option. This coupler does not…

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Answer 6

From what you are describing, it sounds like there might be a clog somewhere in the brake lines on your trailer. This can essentially cause pressure in the lines because the fluid can only go one way, meaning there won't be adequate relief after…

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Answer 7

If a trailer tire and wheel each have different weight capacities then the lower-rated item of the two determines the overall capacity of the combination. You can certainly run a tire with a lower or higher weight rating than the wheel its used on…

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Answer 8

The 2x2 inch square axle is likely 3,500 lbs or less capacity. I would need more spindle dimensions or bearing numbers to assist. If you pull a hub and measure at the spindle where the bearings and seal ride using the digital caliper like #PTW80157 I…

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Answer 9

Trailer axles made from square tubing tend not to be weight-rated as consistently as round axles. In other words there is more potential variance in the weight rating of a square axle; two axles of the same dimensions could easily be rated…

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Answer 10

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 11

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 12

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Replacement For Atwood 85091 Actuator as There Are Not Replacement Parts

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