Ordering by number: this is 3121052100, the Atlas Copco air inlet nipple – 1″. It makes the air or hydraulic connection to the pusher leg. Thread and sealing-face condition here is the difference between full pressure at the tool and a slow leak nobody notices.
The published breakdown lists it on the BBC 34W WS Pusher Leg Drill and BBD 94W 94WS 94WE Rock Drill, and on 2 other machines. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts diagram library to work through the rest of the assembly, or the Atlas Copco catalog if you are pricing a replacement machine. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 3121052100
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121052100
- Listed on breakdowns for: BBC 34W WS Pusher Leg Drill, BBD 94W 94WS 94WE Rock Drill, BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill
