Collar, 4BCH is the American Pneumatic Tools service part carried under part number 1280583200, previously 18861. It replaces our earlier listing under SKU APT18861.
Crowder’s breakdowns list this part on the M43 M44 4-Bolt Chipping Hammer and M44 4-Bolt Chipping Hammer.
The parts diagram hub indexes every breakdown we publish, and the American Pneumatic catalog has the tools these parts go into. It ships from Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280583200
- Previous part number: 18861
- Manufacturer: American Pneumatic Tools
- Crowder SKU: APT-1280583200
- Previous Crowder SKU: APT18861
- Listed on breakdowns for: M43 M44 4-Bolt Chipping Hammer, M44 4-Bolt Chipping Hammer

