Product review (2 stars): How to check your model for compatibility
This part does not fit my Whirlpool (model KDFE104Dxxx). I wish it did: it is obviously a better made part.
To help those wondering if it will fit their dishwasher model: this kit is for top racks whose adjuster wheels travel INSIDE the sliding rail. If your top rack (like mine) clips onto the edge of the rail and travels WITH the rail then this kit will not work.
I had no trouble installing the kit but the wheels rode on top of the rails and bumped up against the rail mounts. There was nothing holding the rack down and it would tip over or fall out if pulled too far. Check this against your model before ordering to save some grief. I will have to return this (after reinstalling the broken parts) and order exact replacements for the plastic parts. I can see how these parts are vulnerable to hard use and will be more easy on it now.