Product review (5 stars): Check the pictures well with what you have and you'll be fine. This replacement kit does have more metal parts
I can confirm this is the correct part for my Kenmore 66513229N410. There are two versions of this kit, the main difference is the wheels; make sure to check if yours match or are compatible. This sets wheels have one large contacting surface that rolls in the track, the other set has wheels that has two smaller contacting surfaces (one on the outside and one towards the inside). Check the pictures well with what you have and you'll be fine.

This replacement kit does have more metal parts, so hopefully it'll last a whole lot longer.

The operating handles and the new body sticks "out" in the rack a little more than the original design, so I can only fit smaller cups next to them now. The loss of a little bit of room is well worth it to have a rack that doesn't fall out when I move it.

Took about 15 total to remove rack, replace one side, replace the other side, and reinstall. I took my time and had no problems. If you don't have a TORX driver available the kit comes with a PH2 to TORX adapter, I didn't use it, but if you only had a PH2 screwdriver you should be able to get the job done.