Dowel Pin carries Chicago Pneumatic part number S001157, cross-referenced to 3310190038 and is stocked here under CP-S001157. It locates or retains an assembly inside the tamper. Small as it is, a sheared or walked-out pin lets a whole subassembly shift.
It appears on the CP 0004 Backfill Tamper breakdown. That machine is the CP 0004 Pneumatic Backfill Tamper 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.
Everything else on that machine is one page away, and the parts diagram library indexes every breakdown we publish. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: S001157
- Also listed as: 3310190038
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-S001157
- Listed on breakdowns for: CP 0004 Backfill Tamper

