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Best Option for Replacing 85841 Master Cylinder on Atwood Drum Brake Actuator  


Will this work in place of an attwood part number 85841 1990 trailer.


Expert Reply:

The Replacement Master Cylinder Assembly # T4395100 will not work to replace your Atwood master cylinder model 85841.

Since replacement parts for your actuator are obsolete, your only option is to replace the entire actuator assembly. The Demco Hydraulic Brake Actuator # DM72VR is the closest one we have to replace your Atwood 6K actuator. You can install part # T4748800 to add an electric lockout, which would be an upgrade from the manual lockout on your Atwood.

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