Ordering by number: this is 1280582611, listed as 01636 before the renumbering, the American Pneumatic Tool front cylinder bearing. It carries the piston and the port timing for the rock drill. Bore wear is gradual, so it is usually diagnosed by falling performance rather than a breakdown.
The published breakdown lists it on the 155 Rock Drill. Pull up the diagram and confirm the reference number for your serial before ordering.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts breakdown index. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: 1280582611
- Previous part number: 01636
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT1636
- Listed on breakdowns for: 155 Rock Drill
