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How to Find Out What Size Brakes My Boat Trailer Uses  

Updated 11/03/2025 | Published 01/08/2025

Question:

How can I determine what size my brakes are on my dmh boat trailer?

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Expert Reply:

Alejandro, in order to find out what size brakes your boat trailer needs you can either pop off your hub and measure the width and depth of the drum, or, you can let me know what size axle you have and we'd be able to find out what size brakes you need.

If you can get let me know what that is in the comments, I'd be happy to find a good set for you.

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Bryce D
Jon G. profile picture

Jon G.

11/3/2025

Hey Alejandro, were you able to measure the drum or find out the axle size on your DMH boat trailer? Once you have that info, I can help match the right brake kit. Let me know what you found so we can get you set up with the right fit.

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