This is Chicago Pneumatic part number F816122, which also shows up as 3310103436 piston, stocked at Crowder Supply as CP-F816122. The piston is the striking mass of the rock drill; its condition sets impact energy, so scoring, mushrooming, or lost diameter shows up directly as reduced production.
It is called out in the parts diagram for the CP 9RR 9RRS Rock Drill and CP 9 9S Rock Drill, and on 3 other machines. 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 full diagram library; complete tools are on the CP tool catalog. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: F816122
- Also listed as: 3310103436
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-F816122
- Listed on breakdowns for: CP 9RR 9RRS Rock Drill, CP 9 9S Rock Drill, CP 9A 9F Rock Drill, CP 9BS Rock Drill, CP 0009 A F E CS ES AC Rock Drill
