Product review (5 stars): Not just a replacement, but an upgrade in every way.
This fit my Kenmore Model 665.1326* perfectly, and was easy to put on (following YouTube videos found using the W10712395 number above). The result is a MUCH sturdier upper rack that feels like a big upgrade from the stock adjuster that came with the washer.

I know you're not reading this review if your current rack isn't broken, but on the off chance you are  don't wait for it to break (it will); just go ahead and replace it with this kit.