Ordering by number: this is 0663210035, the Atlas Copco O-Ring. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.
The published breakdown lists it on the RH 658L/LS/LS-01 Rock Drill. The tool itself is the RH 658 L Surface Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
Need the parts around it? They are on the same breakdown, and the parts diagram library covers every machine we publish. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 0663210035
- Manufacturer: Atlas Copco
- Crowder SKU: AC-0663210035
- Listed on breakdowns for: RH 658L/LS/LS-01 Rock Drill
