Distance From Rear Hole to End of Case on Demco Hydraulic Brake Actuator with Drop

Question

Question:

What is the distance from the aft mounting hole to the end of housing not including solenoid?

asked by: Gene C

0

Expert Reply:

I reached out to Demco for you on the Demco Hydraulic Brake Actuator with Drop and Electric Lockout part # DM8104311, they informed me that the distance from the center of the rear mounting hole to the end of the casing is 7-3/4". I have attached a photo of this below.

expert reply by: Conner L

0

Distance From Rear Hole to End of Case on Demco Hydraulic Brake Actuator with Drop
(click to enlarge)

Answer 1

If you are absolutely sure you'd never be over the 12k number you listed a 12.5k actuator like the Demco part #DM8104311 would work great. I really like how easy to use the EZ latch couplers are of the Demco actuators. If you wanted extra…

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Answer 2

There is one picture that says typical photo. That photo is not what the coupler actually looks like. All the other pictures, included the one here, is what this coupler looks like. I also included a picture showing the measurements you have…

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Answer 3

The Demco Hydraulic Brake Actuator w Drop and Electric Lockout #DM8164311 is rated for disc brakes and it has the electric lockout so as far as compatibility goes those parts will match up. What you need to check on is the mounting bolt hole pattern.…

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Answer 4

Thanks for the picture! I do have an option for you, but we do not have a surge brake actuator for disc brakes that uses 3 holes in the bottom flange like yours. Before replacing it with the Demco Hydraulic Brake Actuator #DM8164311 you were looking…

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Answer 5

You can use the manual lock out part #DM5939 to manually lock out the Demco DA91 actuator part #DM8164311 that you referenced.

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Answer 6

I reached out directly to Demco, who told me that grease should never be used on the 12k disc brake actuator you asked about: - Demco Hydraulic Brake Actuator w/ Drop and Electric Lockout - Disc - Zinc - 2-5/16" Ball #DM8104311 They said the…

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Answer 7

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 8

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 9

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 10

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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Answer 11

Thank you for the pictures of your coupler. You are going to need to replace your entire surge actuator coupler as the A-50 is obsolete and we do not have any parts to repair it. We have the Dexter DX7.5L A-60 Brake Actuator #DX73FR which you can…

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Answer 12

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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Distance From Rear Hole to End of Case on Demco Hydraulic Brake Actuator with Drop

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