What is Needed to Find the Right Replacement Master Cylinder on a Boat Trailer

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Question:

I have a boat trailer need a master cylinder for drum brakes what one is the correct one

asked by: Gary

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Expert Reply:

Replacement master cylinders are specific to the manufacturer and model of the actuating coupler on the trailer. I would need to know the make and model of the actuator to determine if we have a replacement available. This information could be stamped into the actuator usually on the top. It is also possible that there is information stamped into the actual master cylinder you have now.

For example, master cylinder # T4395100 is designed for Titan Model 60 and Aero 7500 actuators. You can see our full selection of master cylinders in the provided link.

expert reply by: Michael H

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Answer 1

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 2

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 3

There really isn't a particular maximum trailer weight that is used to determine when brakes need to be added to both axles of a tandem axle setup. While I do still recommend checking your local laws, I am also not aware of any general laws that…

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Answer 4

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 5

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 6

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 7

You are correct that the Replacement Master Cylinder Assembly for Titan Model 60 and Aero 7500 Brake Actuators - Drum #T4395100 you were looking at is the replacement master cylinder for your older 23361. I included a video of the Titan #T4395100 for…

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Answer 8

The DICO 189 you referenced is the older version of the Titan 60. You will want to replace the master cylinder with the Replacement Master Cylinder Assembly for Titan Model 60 and Aero 7500 Brake Actuators - Drum #T4395100. I've attached a video…

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Answer 9

Hey Tommy, to replace your Atwood 82541 surge actuator you can use the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout #DX63FR. This replacement is going to be weld on, is made in America, and has electric reverse lockout so you can backup…

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Answer 10

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 11

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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What is Needed to Find the Right Replacement Master Cylinder on a Boat Trailer

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