This is a genuine manufacturer sourced replacement part designed for use with Chicago Pneumatic hammers. If your tool is leaking air or gets stuck, replacing firing valve assembly may resolve the issue. It is made out of black plastic and it is sold individually. To complete this repair you would need a screwdriver and pliers.
This is a genuine Chicago Pneumatic replacement part that has been OEM sourced to ensure quality. The o-ring is intended to be used with pneumatic hammers. This o-ring is used to seat and seal the throttle valve bushing and the housing assembly. The o-ring is sold as an individual replacement part.