Valve Seat – Rear carries American Pneumatic Tool part number 1280582919, listed as 17645 before the renumbering and is stocked here under APT17645. Cycle timing runs through this component. Because it shuttles on every blow, it accumulates cycles faster than almost anything else in the rock drill.
Crowder’s breakdowns list this part on the 109 Mini Rock Drill. That machine is the APT 109 Pneumatic Rock Drill if you are pricing a replacement rather than a repair.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the full diagram library. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280582919
- Previous part number: 17645
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT17645
- Listed on breakdowns for: 109 Mini Rock Drill
