Piston carries Chicago Pneumatic part number R000127, also listed as 3310104228 and is stocked here under CP-R000127. Impact energy comes from this part accelerating down the bore. Wear on the strike face or the seal lands costs blow energy before it ever causes a hard failure.
It shows up in the parts breakdown for the CP 1240 1240S 1240SVR Paving Breaker and CP 1290 1290S 1290SVR Paving Breaker, and on 1 other machine. Compare it to the reference callout on the diagram to be sure it is the position you need.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.
- Part number: R000127
- Also listed as: 3310104228
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R000127
- Listed on breakdowns for: CP 1240 1240S 1240SVR Paving Breaker, CP 1290 1290S 1290SVR Paving Breaker, CP 1290SPDR Spike Driver

