This is Atlas Copco part number 3371821710 O-Ring, stocked at Crowder Supply as AC-3371821710. 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 shows up in the parts breakdown for the LH270 270HBP 280E 280E HBP Hydraulic Paving Breaker and BRK 70 70VR 70HBP 70 VR HBP Hydraulic Paving Breaker, and on 4 other machines. 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.
If you need the parts around it, the full diagram library has the full breakdown library, and the Atlas Copco catalog covers the machines themselves. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3371821710
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371821710
- Listed on breakdowns for: LH270 270HBP 280E 280E HBP Hydraulic Paving Breaker, BRK 70 70VR 70HBP 70 VR HBP Hydraulic Paving Breaker, BRK 55 55VR 55VR HBP 55 HBP Hydraulic Paving Breaker, MH55 55A HBP Hydraulic Paving Breaker, MH70 70A HBP Hydraulic Paving Breaker, LH220 220HBP 230E 230E HPB Hydraulic Paving Breaker
