This is Chicago Pneumatic part number R106529 cylinder Ass’y, stocked at Crowder Supply as CP-R106529. The cylinder is the bore the piston runs in, and it sets the working clearance of the rock drill once the bore opens up, air bypasses the piston and blow energy drops.
It appears on the CP 9RR 9RRS Rock Drill breakdown. 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 library; complete tools are on the CP tool catalog. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: R106529
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R106529
- Listed on breakdowns for: CP 9RR 9RRS Rock Drill
