This is the Chicago Pneumatic piston – 4″ part number P118678, also listed as 3310104245, Crowder SKU CP-P118678. The piston is the striking mass of the chipping hammer; its condition sets impact energy, so scoring, mushrooming, or lost diameter shows up directly as reduced production.
It is called out in the parts diagram for the CP 4132 4133 4134 4136 Chipping Hammer and CP 4120 Chipping Hammer, and on 6 other machines. Check it against the reference number on the diagram first; serial breaks change what fits.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: P118678
- Also listed as: 3310104245
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-P118678
- Listed on breakdowns for: CP 4132 4133 4134 4136 Chipping Hammer, CP 4120 Chipping Hammer, CP 4121 Chipping Hammer, CP 4123 Chipping Hammer, TEX 317 318 47 Chipping Hammer, TEX319 320 321 419 421 Chipping Hammer, +2 more
