I just replaced my original Tyres @51K and noticed mag' wheel under plastic covers...

Welcome!

According to information from an old posting (with broken links) I believe these center caps from a 2004 Prius are supposed to work.

Parts.com® | Toyota ORNAMENT SUB-ASSY, W PartNumber 4260352030

 

The Toyota centre cap is available here, item #8:

WHEELS for 2010 Toyota Prius

(p/n: 42603-52110)

I think there's third-party cheaper?

 

Amazing those are hiding under the ugly hubcaps.

 

Yea the plastic covers were part of the car aerodynamics for mpg.

I removed mine after the first couple of weeks and did not see a noticeable drop in mpg. They have been gathering dust ever since.

I bought my center caps at the dealership with the Toyota logo in the center.

 

Not that amazing; they are kinda utilitarian. With the Prius, Toyota LOVES top put plastic wheel covers on alloy rims

 

Long thread on this at 15" wheel center caps | PriusChat

 

I derived my information from post 9 in that thread. The parts.com links in that thread are invalid.

 

The center caps are really easy to find on ebay. Search for Toyota Prius, Yaris center caps. They're all plastic, despite some that describe them as "chrome".

 

Plastic covers are there for improvement of drag that mag wheels make ..better MPG......in my opinion that is not looking better.....
If you want the look ....get good aftermarket true wheels....

Posted via the PriusChat mobile app.

 

And that's your opinion...

I'd rather have the bare alloy wheel, with centercaps, than the cheap looking plastic wheel covers that look like the ones typically installed on cheap steel wheels.

And that's my opinion...

 

Opinions are like noses. Everybody s entitled to have (at least) one of their own.

 

I have to agree here. I like how the "tail" on the hub cab mirrors the same element on the headlights and taillights when seen from the side.

 

They've been turned into mediocre Frisbees, ever since 2004.

.

 

I seem to remember reading somewhere on here that an owner tested mileage with and without the plastic and found no significant difference between the naked wheels and ones with hubcaps!

 

And also the opinion of the Prius engineers that Toyota made available to invited participants at the Gen3 rollout events seven years ago.

The differences the Prius engineers were working with were much too small for us ordinary consumers to measure. But they were working with many of these factors, trying to hit the magical marketing target to 50 EPA-MPG for the product mix.

0.1 MPG is vanishing small to we drivers. But getting a 49.55 rating number that rounds up to 50, is a big marketing leap over getting just 49.45 and having to round down to 49. The engineers were juggling many factors like this. As a collection, they all really add up.