Cylinder Bushing, Chicago Pneumatic part number P074473, cross-referenced to 3310190061, listed at Crowder Supply as CP-P074473. The cylinder is the bore the piston runs in, and it sets the working clearance of the tamper once the bore opens up, air bypasses the piston and blow energy drops.
Crowder’s breakdowns list this part on the CP 0004 Backfill Tamper. 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.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts diagram hub. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: P074473
- Also listed as: 3310190061
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-P074473
- Listed on breakdowns for: CP 0004 Backfill Tamper
