Is Atwood Master Cylinder 85841 the Correct Replacement for 85736

Updated 06/21/2022 | Published 10/07/2018

Question:

I have a atwood master cylinder part 85736 It have been discontinued. I am wondering if atwood part 85841 will work instead. looks to be the same. could you find out the measurements IE bolt hole spacing and overall dementions.

asked by: Matt

Expert Reply:

Both of the Atwood master cylinders 85736 and 85841 that you referenced have been discontinued, but I can verify that part 85841 is a replacement for your 85736 master cylinder. We actually still have a review video of this product that I have linked to this page for you to reference.

Since Atwood is no longer in the actuator business you may want to just swap out your whole actuator as replacement parts will become harder and harder to find. I have attached a link to our surge brake coupler selection for you to filter through if you decide to go this route.

expert reply by: Jon G

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Jeff J.

6/18/2020

I have an Atwood hydraulic Brake Actuator on my boat trailer. I am in need of a new Master Cylinder. I understand Atwood no longer makes these parts. What replacement parts can I get for the following: 85841 - Master Cylinder Drum Brake Application 87478 - Master cylinder Cap Thank you,

Chris R.

6/22/2020

Since these parts are no longer made, you're only real option will be to replace the whole actuator. Can you tell me what specific model actuator it is?