This is American Pneumatic Tool part number 1280582920, which replaced the older number 17646 valve seat – front, stocked at Crowder Supply as APT17646. It directs the flow that reverses the piston in the rock drill. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
It is called out in the parts diagram for the 109 Mini Rock Drill. The complete machine is the APT 109 Pneumatic Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
Need the parts around it? They are on the same breakdown, and the parts diagram hub covers every machine we publish. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 1280582920
- Previous part number: 17646
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT17646
- Listed on breakdowns for: 109 Mini Rock Drill
