Option to Replace Master Cylinder For Disc Surge Brakes on Single Axle Boat Trailer
Updated 12/22/2025 | Published 10/19/2024
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Question:
Hello, I have a 2008 Midi Boat trailer, single axel. I am trying to find a new master cylinder for it. It has surge brakes. They are disk brakes. Thank you,
asked by: Michael S
Expert Reply:
Hi Michael,
We have a number of different options to replace the master cylinder for the disc brakes on your boat trailer, but no way of knowing what actuator is on your 2008 Midi boat trailer. You'll need to know the model of actuator you have to get the right replacement, and I'll list out the options for you:
- Replacement Master Cylinder for Dexter Model 10 and 20 Actuators - Disc Brakes # T4747100
- Replacement Master Cylinder Assembly for Dexter Model 60 Brake Actuators - Disc Brakes # T4820000
- Replacement Master Cylinder for Dexter Aero 7500 Brake Actuators - Disc Brakes # T4714200042
- Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes (fits (A-60, A-75, A-84, A-160, A-200, XR-84 and XR-200) # DX44FR
- Replacement Master Cylinder for Demco Actuators - Disc Brakes # 5672
Product Page this Question was Asked From
Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes
- Accessories and Parts
- Brake Actuator
- Disc Brakes
- Master Cylinder
- Dexter
more information >
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Jerred H.
12/22/2025
Hey Michael, were you able to find out which actuator your boat trailer uses so you could pick the right master cylinder? Knowing what worked could help others trying to match parts for older trailers.