This is the Atlas Copco chuck – 1 X 4 1/4″ part number 3310114300, Crowder SKU AC-3310114300. Retaining the tool steel is its whole job. Worn retention lets the shank hammer against the bore and turns a cheap part into an expensive front head.
The published breakdown lists it on the TEX 14PS 14PS US Paving Breaker and TEX 15PE 15PE US Paving Breaker. Compare it to the reference callout on the diagram to be sure it is the position you need.
Use the parts diagram hub to work through the rest of the assembly, or the Atlas Copco lineup if you are pricing a replacement machine. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 3310114300
- Manufacturer: Atlas Copco
- Crowder SKU: AC-3310114300
- Listed on breakdowns for: TEX 14PS 14PS US Paving Breaker, TEX 15PE 15PE US Paving Breaker

