Gasket carries American Pneumatic Tool part number 1280583459, previously 02109 and is stocked here under APT2109. It seals a pressure joint inside the rock drill, and because elastomer takes a set long before the metal around it wears, it is one of the first items to replace when a machine starts weeping air or oil.
It shows up in the parts breakdown for the 138 Rock Drill and 155 Rock Drill. Check it against the reference number on the diagram first; serial breaks change what fits.
Use the parts diagram hub to work through the rest of the assembly, or the APT lineup if you are pricing a replacement machine. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 1280583459
- Previous part number: 02109
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2109
- Listed on breakdowns for: 138 Rock Drill, 155 Rock Drill

