Ordering by number: this is 410470150, the Tamco/Toku valve case. It directs the flow that reverses the piston in the rivet buster. Valve wear changes port timing, and the machine loses blow rate before it loses the ability to run.
The published breakdown lists it on the RB 91HPD Rivet Buster and RB 110D Rivet Buster, and on 4 other machines. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the full diagram library has the full breakdown library, and the Toku tool catalog covers the machines themselves. It ships out of Denver, same day on in-stock orders placed before 4 PM ET.
- Part number: 410470150
- Manufacturer: Tamco/Toku
- Crowder SKU: TK-410470150
- Listed on breakdowns for: RB 91HPD Rivet Buster, RB 110D Rivet Buster, RB 110 Rivet Buster, RB 91HP Rivet Buster, RB 70 Rivet Buster, RB 70D Rivet Buster

