This is Chicago Pneumatic part number R110210, also listed as 3310190069 O-Ring, stocked at Crowder Supply as CP-R110210. It keeps air or oil where it belongs inside the vibrator. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
It is called out in the parts diagram for the CP 2190 Concrete Vibrator and CP 1210 S SVR Paving Breaker. Pull up the diagram and confirm the reference number for your serial before ordering.
The parts diagram hub indexes every breakdown we publish, and the CP tool catalog has the tools these parts go into. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: R110210
- Also listed as: 3310190069
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R110210
- Listed on breakdowns for: CP 2190 Concrete Vibrator, CP 1210 S SVR Paving Breaker

