This is the American Pneumatic Tool barrel part number 1280583040, listed as 18718 before the renumbering, Crowder SKU APT18718. It carries the piston and the port timing for the scaler. Bore wear is gradual, so it is usually diagnosed by falling performance rather than a breakdown.
It is called out in the parts diagram for the 307 & 317 Needle Scaler. It comes off the APT 307 Pneumatic Needle Scaler. Compare it to the reference callout on the diagram to be sure it is the position you need.
Need the parts around it? They are on the same breakdown, and the parts diagram hub 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: 1280583040
- Previous part number: 18718
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18718
- Listed on breakdowns for: 307 & 317 Needle Scaler
