Piston – 8″ Stoke, Chicago Pneumatic part number R157982, listed at Crowder Supply as CP-R157982. The piston is the striking mass of the rivet buster; its condition sets impact energy, so scoring, mushrooming, or lost diameter shows up directly as reduced production.
You will find it on the diagram for the CP 4181 Puler Puser Rivet Buster and CP 4181 Duler Duser Rivet Buster. 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. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R157982
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R157982
- Listed on breakdowns for: CP 4181 Puler Puser Rivet Buster, CP 4181 Duler Duser Rivet Buster
