Plunger 20mm, General Pump 66040009

SKU 8.701-442.0 Category
  • Genuine Interpump / General Pump Parts
  • 20mm Ceramic Plunger
General Pump
Genuine General Pump OEM Parts


Part Number: 8.701-442.0
Cross Reference Part Number(s): 083900, 87014420
Manufacturer’s Part Number (MPN): 66040009

Use this ceramic plunger on General Pump and Interpump brand pumps.

A cracked or broken ceramic piston can allow water into the pump crankcase, reducing lubrication and possible pump damage. A broken ceramic plunger can also sometimes be seen by a slight water leak between the pump body and pump manifold. Failure to replace a broken ceramic piston can result in further damage to pump, pump seals, unloader valves, and other pressure washer parts.



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