Part number ?

Probably a sub-component of a wiring harness part number? @Elektroingenieur is good with deep-dive stuff like this, might have ideas.

Or salvage yard?

 

I’m assuming this is the No. 1 system main relay connector (S22), for which the Electrical Wiring Diagram (more info) says the housing has Toyota part number 90980-10795.

If the connector has been ripped out of the harness, you could:

• Repair it according to the Electrical Wiring Diagram or Wire Harness Repair Manual (PDF) instructions. You’ll need the housing; three repair wires, Toyota part number 82998-24380 (160 mm pigtail) or 82998-74050 (500 mm pigtail); and the correct parallel splices for the size of the existing wires.

• Buy an equivalent Sumitomo TS 090 series housing and terminals or repair wires from hi-1000ec.com in Japan. If you buy terminals, get some extras, and you’ll need a suitable crimping tool. This may not be an option now, since Japan Post EMS service remains suspended to many countries.

• Replace the entire Floor Wire harness. The part number depends on the destination market and grade; see catalog Figure 82-02, Wiring & Clamp, part name code 82161.