Ordering by number: this is 3371814120, the Atlas Copco packing gland. 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.
You will find it on the diagram for the MH 11 Hydraulic Paving Breaker and MH55 55A HBP Hydraulic Paving Breaker, and on 27 other machines. 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 tool range. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 3371814120
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371814120
- Listed on breakdowns for: MH 11 Hydraulic Paving Breaker, MH55 55A HBP Hydraulic Paving Breaker, MH70 70A HBP Hydraulic Paving Breaker, MDR 30T Hydraulic Post Driver, MDR 75T HBP 75 RV HBP Hydraulic Post Driver, LS 14 & 16 Hydraulic Cut Off Saw, +23 more
