Availability Of Replacement Master Cylinder For Tie Down Model 66 Surge Brake Actuator
Updated 11/09/2026 | Published 11/06/2026
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Question:
I have a tie down model 66 , Not used in years , Have too test master , If I need a master cylinder , what budget friendly master cylinder be used , I do not see model 66 but model 60 is listed , thank you
asked by: Alan b
Expert Reply:
Hey Alan, thanks for reaching out. That model 66 actuator is an older model and unfortunately replacement master cylinders are no longer made for it. So, if you test your master cylinder and find it needs to be replaced, your only option will be to replace the entire actuator. We do have replacement options available; I'll just need to know if your trailer has disc brakes or drum brakes.
Here are the part numbers I recommend for a replacement:
- Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs # 099-175-20
- Dexter DX7.5 Drop-N-Go Brake Actuator - Drum Brakes - 2" Ball - Zinc Plated - 7,500 lbs # 099-175-00
What kind of trailer are you servicing?
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Product Page this Question was Asked From
Dexter DX7.5 Drop-N-Go Brake Actuator - Disc Brakes - 2" Ball - Zinc Plated - 7,500 lbs
- Brake Actuator
- Surge Brake Actuator
- Boat Trailer
- Construction Trailer
- Farm Trailer
- Travel Trailer
- Utility Trailer
- Bolt-On
- 7500 lbs GTW
- 2 Inch Ball Coupler
- 3 Inch Channel Tongue
- Disc Brakes
- Electric Lockout
- Dexter
more information >
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Terry H.
11/7/2026
Love this Actuator. It lives in a harsh environment only 100 feet from the ocean. If couples without issue. It has not rusted since it was purchased, which is impressive. T. Hunt