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  5. 4 Port Service Relay Valve

4 Port Service Relay Valve

Part Number: 7-101-00123
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These are used on trailer brake systems. Their ability to increase control line flow speeds brake application and release times dramatically. This valve also provides a balanced control line symbol for uniform braking of multi-axle combination vehicles or commercial trailers. 

  • 3/8" Control port size
  • 3/4" Reservoir port size
  • 3/8" Delivery port size

    • Used on these trailers: Lowboy. 

    Replaces part# Sealco 110415 

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