General Pump K1 Unloader Valve, 3600 PSI 10.8 GPM, 1/2″ MPT Out

SKU 8.712-601.0 Category
  • Max PSI: 3600
  • GPM: 2.3-10.8
  • 3/8″ FPT Inlet
  • 1/2″ MPT Outlet
  • 1/2″ FPT Bypass
General Pump
Genuine General Pump OEM Parts


Part Number: 8.712-601.0
Cross Reference Part Number(s): 462525, 87126010
Manufacturer’s Part Numbers (MPNs): ZK1, 10ZK1

This 8.712-601.0 General Pump K1.0 flow regulated unloader valve relieves line pressure when pressure washer is in bypass mode. Designed with no external moving parts or springs, and all stainless steel and brass components, with dual gauge ports and convenient bypass location. This K1.0 unloader has a 1/2 inch Male Outlet.


1/2" FPT

Connector / Inlet

3/8" FPT




1/2" MPT



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