Does The Replacement Inner Member # DX39FR Use The Aluminum Master Cylinder?

Updated 10/03/2022 | Published 10/02/2022

Products Featured in This Question

Replacement Inner Member for Dexter DX7.5L Actuator - Single Axle w/ Disc - 2" Ball - 7,500 lbs

(48)

$400.07

Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes

(58)

$158.94

Question:

Hi, I need to replace the inner member brake actuator on my ski boat trailer. The Dexter 7.5 that replaces the UFP A60 seems to be the right part. Is the master cylinder inside all aluminum like the separate master cylinder that you sell? Also, can I switch to DOT 5 fluid in the new member or do I need to change portions of the brake calipers also in order to do that? Silicone based fluid would be much better for a boat trailer in my opinion. Thanks

asked by: Thomas

Expert Reply:

The Replacement Inner Member # DX39FR uses the Master Cylinder Assembly # DX44FR with its durable aluminum construction. The brake components including the master cylinder are only compatible with DOT 3 and DOT 4 Brake Fluid. DOT 5 cannot be used as it will damage the internal components.

expert reply by: Bud M