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Replacement Quick Exhaust Valve for Roadmaster BrakeMaster Supplemental Braking System


Ive lost the valve at the bottom of the actuator cylinder. Where can I order this part? I am not missing the valve, only the insert with the pressure relief function. Apparently this part threads into the valve bonnet and somehow came unscrewed. Can one purchase just the insert?


Expert Reply:

The replacement valve that you will need is # RM-450601-50. This is the replacement exhaust valve for the Roadmaster BrakeMaster system.

The valve is a complete replacement. There is no rebuild kit or separate parts available for the unit.

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