Valve Block – Complete, Chicago Pneumatic part number 3377021026, listed at Crowder Supply as CP-3377021026. It directs the flow that reverses the piston in the power pack. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
Crowder’s breakdowns list this part on the PAC P18 Hydraulic Power Pac. Pull up the diagram and confirm the reference number for your serial before ordering.
Use the full diagram library to work through the rest of the assembly, or the CP tool 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: 3377021026
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-3377021026
- Listed on breakdowns for: PAC P18 Hydraulic Power Pac

