Can Brake Actuator for Trailer Drum Brakes be Used with Disc Brakes

Question

Question:

I have a magic-tilt trailer w/disk breaks will the A-60 bolt on work for both disk and drum breaks, DX33FR ?

asked by: Thomas I

0

Expert Reply:

Hey Thomas, the reason you can't use the Dexter DX7.5L with disc brakes is because drum and disc brakes require different pressure ratings. Disc can be as high as 1,600 psi whereas drum is more like 1,000.

So the part # DX33FR is drum brake only but the disc brake compatible equivalent is the part # DX89FR which is the correct rating.

expert reply by: Jameson C

0

Jameson C.

10/22/2025

Hey Thomas, how did the swap to the disc brake actuator go on your Magic-Tilt trailer? Knowing what worked with the DX89FR could help others trying to match their brake setups.

Answer 1

To replace your old UFP A-70 actuator I recommend using the Dexter DX7.5L A-60 Brake Actuator - Bolt On - Drum - 2" Ball - Zinc - 7,500 lbs #DX33FR. This is going to be a direct replacement and will work with your drum brakes.

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Answer 2

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 3

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 4

That's a really good question, and there is a difference between the 7,500 lb Dexter DX7.5L A-60 actuators for disc brakes; the differences are both in what they fit, as well as their length. - 14" Long & Top-Mounted For 3" Wide…

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Answer 5

Your surge coupler will have either a sticker or an engraving on it, typically near where the coupler is located. If you can get me that information and what you're needing to replace on it I'd be more than happy to help you find what…

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Answer 6

Welcome back Kevin. The Dexter DX7.5L A-60 Brake Actuator item #DX33FR with mounting bolts measuring 3" center to center. The holes are 1/2" in diameter and sit 3/4" below where the actuator will sit on top of your coupler. The DX7.5L…

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Answer 7

Hi Charles, While we don't currently offer the inner member that you're needing for the UFP A-70 we do offer a compatible replacement with the Dexter DX7.5L A-60 Brake Actuator #DX33FR. This is the entire actuator assembly along with the…

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Answer 8

Hi Jeremiah, You're correct that the Demco Hydraulic Brake Actuator part #DM72VR is the replacement for your old Atwood 171 to work with your hydraulic drum brakes. The #DM72VR doesn't have a reverse lockout though, but you can easily add a…

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Answer 9

Hey Patrick. We get these questions quite a bit and it's typically a TDE Model LP7000 actuator. So, I am going to answer your question based on that. I would love to take a look at any pictures you have. You can send them directly to the email…

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Answer 10

It sounds like you're looking for a brake actuator that fits a 2" ball for your 2017 Trailstar. The dimensions don't have to match up, although it is nice if they do. The important thing is to know the capacity you need and whether this…

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Answer 11

Yes! The Kodiak 10" Rotor #KR10S will fit on your UFP DB35 axle/brake setup. If you're needing a complete left and right side, the Kodiak Disc Brake Kit #K2HR35DS will work great as well. This kit includes 2 corrosion-resistant,…

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Can Brake Actuator for Trailer Drum Brakes be Used with Disc Brakes

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