Originally Posted by 4MoJoe

Ok, mystery solved! I actually about peed myself when I discovered the origin of this wiper.

I looked everywhere at it and finally took the cap off that covers the bolt. And there it was, the word - VOLVO. After a lot of web searching I found it. It's from an XC90. You need two parts:

Volvo #30699847 - XC90 2007-2010 Wiper Arm Rear w/Wiper Cover OES $52.33
VOLVO XC90 WIPERS WASHERS & RELATED 2003-2010 at Swedish Auto Parts (formerly TheVolvoSite.com)
(This is the arm and the cover, OES means Original Equipment Volvo Part)

You then need the blade:

Volvo # 30699848 - XC90 2007-2010 Wiper Blade Rear OES
(same link above). $16.41

For whatever reason this fits on my X5.

I need to get a new blade so I'll order one. Now the question is will other X5 owners put Volvo wiper parts on their car! I'm not removing it as I like it!

Originally Posted by 4MoJoe

My rear wiper got ripped off in the car wash and the one they bought me was from post #11 - for the X3. I didn't think it'd fit but it did and it looks better. I don't think it does a good job of wiping at the top of it's travel however. I'll probably go back to the X5 style.