This is American Pneumatic Tool part number 1280583486, listed as 02355 before the renumbering throttle valve plunger, stocked at Crowder Supply as APT2355. This is control gear it meters air to the rock drill. A worn control gives creep, hard starting, or a tool that will not shut off cleanly.
Crowder’s breakdowns list this part on the 137 Rock Drill. That machine is the APT 137 Pneumatic Rock Drill if you are pricing a replacement rather than a repair. 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. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 1280583486
- Previous part number: 02355
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT2355
- Listed on breakdowns for: 137 Rock Drill
