This is the Chicago Pneumatic back head assy part number R145777, Crowder SKU CP-R145777. This is the upper housing of the breaker, taking the through-bolt load and the inlet connection.
Crowder’s breakdowns list this part on the CP 1210 S SVR Paving Breaker. Pull up the diagram and confirm the reference number for your serial before ordering.
The rest of the assembly is on the same breakdown, and every diagram we publish is indexed on the parts breakdown index. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: R145777
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-R145777
- Listed on breakdowns for: CP 1210 S SVR Paving Breaker

