Seal Washer carries Chicago Pneumatic part number 0661100042 and is stocked here under CP-0661100042. It keeps air or oil where it belongs inside the power pack. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
It is called out in the parts diagram for the LP 9-20P 9-20E Hydraulic Power Pac and PAC P13 Hydraulic Power Pac, and on 1 other machine. Check it against the reference number on the diagram first; serial breaks change what fits.
Everything else on that machine is one page away on the parts diagram hub; complete tools are on the Chicago Pneumatic lineup. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 0661100042
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-0661100042
- Listed on breakdowns for: LP 9-20P 9-20E Hydraulic Power Pac, PAC P13 Hydraulic Power Pac, PAC P18 Twin E11 Twin Hydraulic Power Pac
