Piston – 11″ Stroke is the Chicago Pneumatic service part carried under part number R157981, which also shows up as 3310190043. 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.
The published breakdown lists it on the CP 4181 Puler Puser Rivet Buster and CP 4181 Duler Duser Rivet Buster. Worth matching the reference number on the diagram against your own machine before you order the same part number can sit in more than one position.
Use the parts diagram library to work through the rest of the assembly, or the CP tool catalog 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: R157981
- Also listed as: 3310190043
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R157981
- Listed on breakdowns for: CP 4181 Puler Puser Rivet Buster, CP 4181 Duler Duser Rivet Buster
