What Rebuild Kit do You Have for My Dico Model 10 Hydraulic Surge Brake Actuator?
Updated 08/15/2025 | Published 07/21/2025
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Question:
I have a Dico Model 10 hydraulic brake actuator on my boat trailer. I need to rebuild the brake master cylinder. What is the part number for the rebuild kit for this master cylinder?
asked by: Keith N
Expert Reply:
Hello Keith,
We do not have a rebuild kit that includes all the parts together. For the Dico-style actuator, I was able to find part number 1018700 through a Google search, but there wasn’t much luck locating it in stock anywhere, which suggests it’s likely discontinued. The replacement parts we do offer are the Replacement Master Cylinder Cap with Diaphragm part # T4830601, Replacement Weather Seal part # T1055200, Top and Bottom Bearing part # T1020900.
I recommend replacing the entire master cylinder instead.
For your Dico Model 10 surge brake actuator, you’ll want one of the following:
For disc brakes: # T4749501042
For drum brakes: # T2374600
Were you able to track down one of those full rubber seals? What kind of boat do you have on that trailer? We just got our Ranger back a week ago after waiting a long 7 weeks for our new Yamaha motor to come in. At least now I don’t have to worry about it acting up during our next bass tournament!
Product Page this Question was Asked From
Replacement Master Cylinder Assembly for Dexter Model 10 and Model 20 Brake Actuators - Drum
- Accessories and Parts
- Brake Actuator
- Hydraulic Drum Brakes
- Master Cylinder
- Dexter
more information >
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Kate F.
8/15/2025
Hey Keith, Did you end up replacing the entire master cylinder for your Dico Model 10 actuator, or were you able to find a rebuild kit? I’m curious because it could help others who might be in the same boat—no pun intended!