Atwood Hydraulic Brake Actuator Parts List and Schematic

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Atwood Hydraulic Brake Actuator Parts List and Schematic

Atwood's Unique Design for Superior Braking

  • Unique design creates more pressure on the brakes than in-line actuator systems.
  • Parts interchangeability between 6K and 8K actuators.
  • Lock-out feature allows use with standard hydraulic brakes for backing up. No need for specific free-backing brakes.
  • Disc brake actuators available specifically for use with disc brake systems. Supplies, even more, fluid pressure to brakes than standard hydraulic.
  • A breakaway device will set trailer brakes automatically should separation from tow ball occur.
Atwood Hydraulic Brake Actuator Schematic

Ordering Replacement Atwood Parts

Atwood Logo

Replacement Parts are no longer available, but we recommend using the UFP A-60s or A-75s. Some modifications may be needed. Possibly drilling new holes. 

  • Atwood Hydraulic Surge Brake Actuators for both DIsc and Drum Brake Applications.
  • Atwood 6,000 lb. Capacity Brake Actuators Include Model numbers: 82543, 83153, 84132, 84133, 88730, 88740
  • Atwood 8,000 lb. Capacity Brake Actuators Include Model numbers:
  • 83000, 83005, 83010, 83060, 8036

94 comments

  • Joe

    Hello I have a Atwood Rockford 61101 actuator. I need the master cylinder and shock kit. Numbers 6&7 for the master cylinder. Number 4 for the shock and all the nuts, washer, and bushings. Are these available!?

  • Roger Harris

    How much DOT. 3 BRACK FLUID DOES MY Atwood 85778 trailer hitch hold..

  • Phil

    I have a Atwood Hydraulic Brake Actuator with a master cylinder #85736. I’m looking for the Dust Boot replacement, I believe it’s part number 84258, and a replacement gasket. Would you happen to have these parts? If not, is the a compatible dust boot I can purchase? I’m not too concerned for the gasket since I can likely cut one to fit.

  • Jerry

    What’s not shown in the diagram is the lockout knob on opposite side. Is it a replaceable part?

  • Larry

    looking for part #. 4 shock and also master cylinder #6
    please let me know if you have these parts. thanks

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