General Pump K3.3 Unloader Valve, 1500 PSI 6.5 GPM, 1/2″ MPT Out

SKU 8.712-610.0 Category
  • Max PSI: 1500
  • GPM: 5.0-6.5
  • 3/8″ FPT Inlet
  • 1/2″ MPT Outlet
  • 3/4″ MPT or 1/2″ FPT Bypass
General Pump
Genuine General Pump OEM Parts


Part Number: 8.712-610.0
Cross Reference Part Number(s): 462533E, 87126100
Manufacturer’s Part Numbers (MPNs): ZK33, 10ZK33

This 8.712-610.0 General Pump K3.3 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 K3.3 unloader has a 1/2 inch Male Outlet.


1/2" FPT, 3/4" MPT

Connector / Inlet

3/8" FPT




1/2" MPT



You may also like…

Scroll to Top