I'm having same issue with our 2011. I've found some videos on youtube saying you can replace the 2 bearings in it but the dealer and others will say you have to buy the $900-1200 unit.
Here are the part numbers I've found:


Bearing Radial Ball - Toyota P/N (90363-65004) - I think the NSK P/N is to be 95DSF01
Bearing Radial Ball - Toyota P/N (90363-95007) - I think the NSK P/N is to be 61911
Seal Type S Oil - Toyota P/N (90310-54001)

 

 

Hi Guys, I'm currently changing the coupler bearings on my 2011 Limited AWD. I got the correct parts except for the inner/smaller bearing. The size is bigger. Its the part number I got from this forum.
If someone can help me get the correct Toyota part number, that would be awesome.
It's an NSK 6911V, size 80*55*13 mm.

 

I need to do this in my 2012 AWD sienna... Did you ever find what the part number was for the smaller bearing? I search "NSK 6911V" in google and I'm not finding anything. A Toyota part number would be great.

 

AWD Coupling Repair DIY- Growling / Whirring / Buzzing /...

Just started this, after pulling together lots of little bits of information from the internet and youtube. Decided to post it here in one place in case it helps someone else. Our 2011 Sienna XLE AWD started making a loud bearing grinding noise from the rear end. It was equally loud on each...

www.siennachat.com

 

I bought mine on ebay. VXB brand

 

I have a 2012 XLE with a noisy viscous coupler. Where can I go to confirm the part numbers based on my VIN?

 

Did you find a source for NSK 6911V or a Toyota number? NAPA in Canada is quoting $142 plus tax for the NSK. Poorly made Chinese brands (with the 1 in the number typically, so 61911) are not an option.

 

Here is a thread that shows a source I found through Google:

AWD Coupling Repair DIY- Growling / Whirring / Buzzing /...

Just started this, after pulling together lots of little bits of information from the internet and youtube. Decided to post it here in one place in case it helps someone else. Our 2011 Sienna XLE AWD started making a loud bearing grinding noise from the rear end. It was equally loud on each...

www.siennachat.com

I went with a local repair shop who has done this before, so I didn't use them. Longo Toyota's website has a VIN search, so you can double check to see if the parts would indeed fit your exact vehicle. My first part number, I believe it was from this thread, was indeed wrong and they referred me to the proper variation.

I would have used OEM parts, with hesitation: It was a genuine Toyota part that broke down at 126K, and that bothered me. Would the next Toyota bearing do the same? However, one post here talked about the lack of a groove for an o ring seal in the NSK bearing, and I was concerned that might lead to dust contamination or some such.

Along the way, I found a website that decoded bearing numbers, and it was fascinating reading. If you are getting your own, I'd suggest searching for it as background, bearings are one of those closed box mysteries I don't much understand, and this shed some light on things. It explained why you definitely DON'T want some similar bearings.

My van goes to the shop tomorrow, wish me luck. I'm trading an experienced mechanic, not having to do it myself, and a written guarantee for him charging a 150%+ markup on the parts over their cost. Not as bad as the local dealers, but still! He quoted me just under $800 total to fix it.

 

Thanks!

Yesterday I finally found the 13mm (newer 2015+) coupler bearings, dust shield, and oil seal -- all OEM Toyota, from an EBay seller in Quebec. There may be similar for the US if searching for "Sienna coupling".

Bearing & deflector & seal Toyota Sienna coupling 41303-28011 41303-28013 | eBay

Find many great new & used options and get the best deals for Bearing & deflector & seal Toyota Sienna coupling 41303-28011 41303-28013 at the best online prices at eBay! Free shipping for many products!

www.ebay.ca