Ordering by number: this is 3378512073, the Chicago Pneumatic seal. 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.
Crowder’s breakdowns list this part on the RDR 48R Rock Drill. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
Use the full diagram library to work through the rest of the assembly, or the CP tool catalog if you are pricing a replacement machine. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3378512073
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-3378512073
- Listed on breakdowns for: RDR 48R Rock Drill
