Throttle Valve Cap, Chicago Pneumatic part number 9245999920, listed at Crowder Supply as CP-9245999920. This is control gear it meters air to the rivet buster. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
You will find it on the diagram for the CP 4160 Rivet Buster. That machine is the CP 4160 Pneumatic Rivet Buster if you are pricing a replacement rather than a repair. Check it against the reference number on the diagram first; serial breaks change what fits.
Work through the rest of the assembly on the same breakdown, or start over from the parts diagram library. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 9245999920
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-9245999920
- Listed on breakdowns for: CP 4160 Rivet Buster

