Ordering by number: this is P157920, which also shows up as 3310190391, the Chicago Pneumatic buffer. This cushions impact inside the chipping hammer. Buffers are designed to break down before the castings do, which makes them a routine replacement.
Crowder’s breakdowns list this part on the CP 4121 Chipping Hammer and CP 0017 SVR Chipping Hammer. Compare it to the reference callout on the diagram to be sure it is the position you need.
Use the parts diagram hub to work through the rest of the assembly, or the Chicago Pneumatic lineup if you are pricing a replacement machine. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: P157920
- Also listed as: 3310190391
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-P157920
- Listed on breakdowns for: CP 4121 Chipping Hammer, CP 0017 SVR Chipping Hammer
