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Recommended Weld on Disc Brake Actuator to Replace an Atwood Disc Brake Actuator  

Updated 08/13/2026 | Published 08/07/2026

Question:

Hi I have a 2008 boat trailer with Atwood disc brakes aka surge brakes, it is welded to the a frame , parts are no longer available for it, what can I weld on the replace it that will work with my disc brakes?

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Expert Reply:

Welcome back Brandon! To replace your boat trailer's disc brake actuator with a new weld on one, I recommend the Dexter DX7.5L A-60L item # DX49FR. It is designed to be welded to a 3" wide trailer tongue.

The Dexter DX7.5L A-60L item # DX49FR is a 7,500 lbs capacity disc brake only actuator with a 2" coupler. This actuator also includes an electric lockout that'll stop your disc brakes from engaging when you're backing your trailer down the ramp or into a parking spot.

What kind of boat do you have and what do you typically use it for? Feel free to answer this and throw in any other questions you have, where it says Add Comment.

expert reply by:
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Jerred H
DX49FR
DX49FR
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DX49FR
DX49FR
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Brandon S. profile picture

Brandon S.

8/13/2026

A 2008 caravelle 237

Jerred H. profile picture
Etrailer Expert

Jerred H.

8/13/2026

@BrandonS Awesome! That's a nice boat. Looks like a lot of fun.
Brandon profile picture

Brandon

8/13/2026

Also will I have to add a piece of 3 inch square tubing since my trailer is 3 inch c channel coming to an A frame style tongue?

Jerred H. profile picture
Etrailer Expert

Jerred H.

8/13/2026

@Brandon Yes, you will. The Dexter item # DX49FR won't work with an A-frame style tongue. The only option, I can find that would is the Demco Hydraulic Brake Actuator item # DM8105422. Does your current coupler fit a 2" or 2-5/16" hitch ball?
Brandon profile picture

Brandon

8/13/2026

2 inch
Brandon profile picture

Brandon

8/13/2026

Also I can add a 3 inch piece of square tubing to the tongue and do the offer a bolt on that will fit over the 3 inch channel?

Jerred H. profile picture
Etrailer Expert

Jerred H.

8/13/2026

@Brandon They sure do! It's the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout item # DX89FR. This is the same actuator with a different housing that can be bolted to a 3" wide trailer tongue.
Brandon profile picture

Brandon

8/13/2026

Ok thanks bud
Jerred H. profile picture
Etrailer Expert

Jerred H.

8/13/2026

@Brandon You're welcome!

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