Upper Valve Case, American Pneumatic Tool part number 1280583017, which replaced the older number 18693, listed at Crowder Supply as APT18693. Cycle timing runs through this component. Because it shuttles on every blow, it accumulates cycles faster than almost anything else in the chipping hammer.
Crowder’s breakdowns list this part on the 260 Chipping Hammer Series and M43 M44 4-Bolt Chipping Hammer. 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 parts diagram library to work through the rest of the assembly, or the APT lineup if you are pricing a replacement machine. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583017
- Previous part number: 18693
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18693
- Listed on breakdowns for: 260 Chipping Hammer Series, M43 M44 4-Bolt Chipping Hammer
