
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.

Ordering Replacement Atwood Parts
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
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