This is Atlas Copco part number 3378206021 O-Ring, stocked at Crowder Supply as AC-3378206021. It keeps air or oil where it belongs inside the pump. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
The published breakdown lists it on the AWP2 3 Hydraulic Submersible Pump and WAP2 WAP3 Hydraulic Submersible Pump. Compare it to the reference callout on the diagram to be sure it is the position you need.
Use the parts breakdown index to work through the rest of the assembly, or the Atlas Copco catalog if you are pricing a replacement machine. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3378206021
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3378206021
- Listed on breakdowns for: AWP2 3 Hydraulic Submersible Pump, WAP2 WAP3 Hydraulic Submersible Pump
