I know that ONE of the correct options is to use 42603-12730. However, these are expensive unless you get the cheap knock-offs on ebay. After some comparison shopping, it appears that 42603-08030 is the same size, albeit slightly different design. I am taking a chance and ordering these instead, because these are much easier to purchase used OEM genuine. I bought a set of 4 used ones on eBay for $15. I will report back on how well they fit.
Yes, 42603-08030 fits perfectly and looks great. color match is almost identical. So there you go at least one other OEM part number for us prius v wagon owners can use. IMG_0241 by gafortiby posted Mar 26, 2017 at 4:36 PM IMG_0240 by gafortiby posted Mar 26, 2017 at 4:36 PM
I used the ones on eBay that are marked 57mm or 2.25" and they worked perfectly! Popped right in and are very snug. 2010 Prius.
I picked mine up off Amazon for 7 bucks for 4. They fit snug and have about 20k miles on them. Posted via the PriusChat mobile app.
