Ordering by number: this is 3121073600, the Atlas Copco valve seat. It directs the flow that reverses the piston in the rock drill. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It appears on the BBC 34DSI Rock Drill and BBC 16W WS Pusher Leg Drill, and on 1 other machine breakdown. Compare it to the reference callout on the diagram to be sure it is the position you need.
If you need the parts around it, the parts diagram library has the full breakdown library, and the Atlas Copco tool range covers the machines themselves. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3121073600
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3121073600
- Listed on breakdowns for: BBC 34DSI Rock Drill, BBC 16W WS Pusher Leg Drill, BBC 34W WS Pusher Leg Drill
