This is the Atlas Copco O-Ring part number 3371100084, Crowder SKU AC-3371100084. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.
It appears on the MH55 55A HBP Hydraulic Paving Breaker and BRK 95 95VR 95HBP Hydraulic Paving Breaker, and on 2 other machines breakdown. Pull up the diagram and confirm the reference number for your serial before ordering.
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: 3371100084
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371100084
- Listed on breakdowns for: MH55 55A HBP Hydraulic Paving Breaker, BRK 95 95VR 95HBP Hydraulic Paving Breaker, BRK 70 70VR 70HBP 70 VR HBP Hydraulic Paving Breaker, BRK 55 55VR 55VR HBP 55 HBP Hydraulic Paving Breaker

