Replacement 10" Drum Hydraulic Trailer Brakes for Converting 3,500 lbs Axles to Hydraulic Brakes
Updated 02/07/2026 | Published 02/04/2026
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Question:
I currently have a tandem axle boat trailer with Dexter 3500 lb axles and electric brakes on one axle. I want to convert my electric brakes to hydraulic using your etrailer Hydraulic Trailer Brakes - Uni-Servo - 10 - Left/Right - 3.5K and Demco Hydraulic Brake Actuator - Drum - Zinc - 2 Ball - 7,000 lbs My question is can I use my existing Dexter hubs/drums on these new hydraulic brakes?
asked by: Mike H
Expert Reply:
You sure can Mike. The etrailer Hydraulic Trailer Brakes item # AKUBRK-35 are going to work with your boat trailer's hubs. The only time you run into problems is going from hydraulic brakes to electric because you need a smooth surface for the magnets to grip.
The Demco Hydraulic Brake Actuator item # DM72VR is the correct one for drum brakes. It does not have a manual or electric lockout so you'll need to add one with the Reverse Lockout Solenoid Kit item # DM5836 or use the Free Backing item # AKFBBRK-35 brake assemblies.
If you also need brake lines we have that as well depending on the length you need:
18' - Kodiak Hydraulic Brake Line Kit - Tandem Axle # 18TA-BLKIT
20' - Kodiak Hydraulic Brake Line Kit - Tandem Axle # 20TA-BLKIT
25' - HydraStar Hydraulic Brake Line Kit - Tandem Axle # HS496-252
What kind of boat do you have?
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Product Page this Question was Asked From
etrailer Hydraulic Trailer Brakes - Uni-Servo - 10" - Left/Right - 3.5K
- Trailer Brakes
- Hydraulic Drum Brakes
- Standard Grade
- Manual Adjust
- Single Servo
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
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Mike H.
2/7/2026
Excellent! thx Jerred I’ll be placing the order shortly. Boat is a Monterey 234FS