O-Ring is the Atlas Copco service part carried under part number 3371820704. 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 BRK 55 55VR 55VR HBP 55 HBP Hydraulic Paving Breaker and PDR 95T 95RV Hydraulic Post Driver, and on 13 other machines breakdown. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
The parts diagram library indexes every breakdown we publish, and the Atlas Copco 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: 3371820704
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371820704
- Listed on breakdowns for: BRK 55 55VR 55VR HBP 55 HBP Hydraulic Paving Breaker, PDR 95T 95RV Hydraulic Post Driver, PDR 75T 75RV Hydraulic Post Driver, MH55 55A HBP Hydraulic Paving Breaker, MH70 70A HBP Hydraulic Paving Breaker, MDR 75T HBP 75 RV HBP Hydraulic Post Driver, +9 more
