O-Ring is the Atlas Copco service part carried under part number 0663914300. It keeps air or oil where it belongs inside the breaker. 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 RTEX 15US Paving Breaker and RTEX 35US Paving Breaker. Compare it to the reference callout on the diagram to be sure it is the position you need.
Everything else on that machine is one page away on the parts diagram hub; complete tools are on the Atlas Copco lineup. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 0663914300
- Manufacturer: Atlas Copco
- Crowder SKU: AC-0663914300
- Listed on breakdowns for: RTEX 15US Paving Breaker, RTEX 35US Paving Breaker

