Throttle Valve, Chicago Pneumatic part number p001789, listed at Crowder Supply as CP-p001789. It governs how air reaches the working end of the rivet buster. Wear on the sealing land is the usual cause of a throttle that leaks with the trigger released.
Crowder’s breakdowns list this part on the CP 4160 Rivet Buster. The tool itself is the CP 4160 Pneumatic Rivet Buster. 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, and the parts diagram library indexes every breakdown we publish. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: p001789
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-p001789
- Listed on breakdowns for: CP 4160 Rivet Buster
