Governor Valve – Complete, Chicago Pneumatic part number Z9165561, cross-referenced to 3310190274, listed at Crowder Supply as CP-Z9165561. It directs the flow that reverses the piston in the saw. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It appears on the CP 0044 Concrete Saw breakdown. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
Everything else on that machine is one page away on the parts diagram library; 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: Z9165561
- Also listed as: 3310190274
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-Z9165561
- Listed on breakdowns for: CP 0044 Concrete Saw

