Ordering by number: this is 131501017, the Tamco/Toku front head bolt. This part holds and guides the steel. Elongation of the shank bore is the usual reason for replacement, well before any crack appears.
It shows up in the parts breakdown for the TPB 90 Paving Breaker. Compare it to the reference callout on the diagram to be sure it is the position you need.
Use the parts diagram hub to work through the rest of the assembly, or the Toku tool catalog if you are pricing a replacement machine. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 131501017
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-131501017
- Listed on breakdowns for: TPB 90 Paving Breaker

