O-Ring is the Atlas Copco service part carried under part number 3378512037. It seals a pressure joint inside the drill, 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 COR 5/15 Hydraulic Core Drill and MHC5 Hydraulic Core Drill, and on 1 other machine breakdown.
Everything else on that machine is one page away on the parts diagram library; complete tools are on the Atlas Copco catalog. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3378512037
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3378512037
- Listed on breakdowns for: COR 5/15 Hydraulic Core Drill, MHC5 Hydraulic Core Drill, LCD 500 & LCD 1500 Hydraulic Core Drill
