Check Valve, Atlas Copco part number 3371803121, listed at Crowder Supply as AC-3371803121. This part controls the working cycle of the tool. When its faces wear, the tool sounds different and the blow rate falls off usually the first thing checked on a slow machine.
Crowder’s breakdowns list this part on the LFD 20/30 Hydraulic Oil Flow Divider. Pull up the diagram and confirm the reference number for your serial before ordering.
If you need the parts around it, the parts diagram library has the full breakdown library, and the Atlas Copco lineup covers the machines themselves. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 3371803121
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3371803121
- Listed on breakdowns for: LFD 20/30 Hydraulic Oil Flow Divider

