Front Cylinder Bearing is the American Pneumatic Tool service part carried under part number 1280583066, listed as 02935 before the renumbering. It carries the piston and the port timing for the rock drill. Bore wear is gradual, so it is usually diagnosed by falling performance rather than a breakdown.
It shows up in the parts breakdown for the 115 Rock Drill. The tool itself is the APT 115 Pneumatic 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.
Need the parts around it? They are on the same breakdown, and the full diagram library covers every machine we publish. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583066
- Previous part number: 02935
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2935
- Listed on breakdowns for: 115 Rock Drill
