This is American Pneumatic Tool part number 1280583035, listed as 18713 before the renumbering barrel sleeve, stocked at Crowder Supply as APT18713. 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.
You will find it on the diagram for the 307 & 317 Needle Scaler. The complete machine is the APT 307 Pneumatic Needle Scaler. 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.
Everything else on that machine is one page away, and the full diagram library indexes every breakdown we publish. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280583035
- Previous part number: 18713
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18713
- Listed on breakdowns for: 307 & 317 Needle Scaler
