Product review (5 stars): Glad we bought it!
We used this part to replace the adjustable arm on our Kitchenaid Architect series dishwasher.  This part replaced  was W10350374 Adjustable Arm and this replacement is actually an improvement.

The original part was 100% plastic and had needed to be replaced twice in three years.  This part with metal components is noticably sturdier.  Just installed it so can't be sure it will last but it feels a lot stronger and obviously being made o metal it should last a lot longer.

Installation was also very easy.  30 minutes to replace both arms on the upper rack using a simple set of screwdrivers.