Of course it works, it's an OEM product. The fact that Subaru would put a proprietary wiper on a vehicle that nobody else would makes is rediculous. Of course, I found the same to be true of many other parts, brake caliper bracket bolts, keys (not talking about chipped keys, just a plain key) and other parts. They may be one of the worst cars when it comes to finding parts. Of course, that works to their advantage to sell you a $40 wiper.
on a 2008 Tribeca , after market wiper blades will not fit the driver side j hook arm. the opening is not wide enough on stock replacements . ONLY oem genuine Subaru will work.