I looked at the Toyota.com parts site for a 2026 Limited AWD temporary steel wheel. For part #42611-21280 I see two sizes listed; 16x4T and 18x4T. Which wheel size is correct? How does one order the correct size wheel if the part #'s are the same? site I used to find the wheel parts Category
That image isn't for the Prius. 21280 is used in different vehicles, so the website will show the part diagrams for all the different vehicles it can come on. You just clicked on the wrong one. I don't know which vehicle's diagram you posted, but apparently some trims of that model come with the 16x4 and others come with a 18x4. The 18x4 has a different part number that you would see if you entered that vehicle into your search. tldr: Your image is wrong. 42611-21280 is the correct part number. Don't pay over $67 for it. Probably $63(w/ free shipping) if you wait two weeks.
