This is Chicago Pneumatic part number C125868, cross-referenced to 3310190215 O-Ring, stocked at Crowder Supply as CP-C125868. It seals a pressure joint inside the breaker, and because elastomer takes a set long before the metal around it wears, it is one of the first items to replace when a machine starts weeping air or oil.
It appears on the CP 1210 S SVR Paving Breaker and Air N Arc 300 Gas All in One Power System breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: C125868
- Also listed as: 3310190215
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-C125868
- Listed on breakdowns for: CP 1210 S SVR Paving Breaker, Air N Arc 300 Gas All in One Power System
