General Pump 20mm Plunger 66040009

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


Part Number: 8.701-442.0
OEM / Old Part Number(s): 083900, 87014420
General Pump Item Number: 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.

Weight 0.1 lbs
Dimensions 2.25 × 0.75 × 0.75 in
Scroll to Top