This is American Pneumatic Tool part number 1280582654, previously 17939 back head Ass’y, stocked at Crowder Supply as APT17939. This is the upper housing of the breaker, taking the through-bolt load and the inlet connection.
The published breakdown lists it on the 140 Paving Breaker and 140 Paving Breaker – Former Construction. That machine is the APT 140 Pneumatic Paving Breaker if you are pricing a replacement rather than a repair. Check it against the reference number on the diagram first; serial breaks change what fits.
Need the parts around it? They are on the same breakdown, and the parts diagram library covers every machine we publish. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 1280582654
- Previous part number: 17939
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT17939
- Listed on breakdowns for: 140 Paving Breaker, 140 Paving Breaker – Former Construction
