Front Valve Seal carries Chicago Pneumatic part number R085698 and is stocked here under CP-R085698. It directs the flow that reverses the piston in the rock drill. 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 CP 9BS Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
The parts diagram hub indexes every breakdown we publish, and the Chicago Pneumatic lineup has the tools these parts go into. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: R085698
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R085698
- Listed on breakdowns for: CP 9BS Rock Drill

