The Cantilever Bin is an OEM part for Whirlpool French door refrigerators. It serves as an extended storage drawer/basket suspended from cantilever rails within the refrigerator interior.  Symptoms of a faulty Cantilever Bin could include: Excessive sagging or difficulty supporting weight   Binding or jamming issues when attempting to extend/retract Loosening from mounting rails causing rattling or detachment Damage to surrounding shelves from improper sliding operation Common causes stem from normal wear of plastic runner components over repeated opening/closing cycles. Exposure to excessive loads could bend or warp structural pieces as well. This replacement part works with KitchenAid, Jenn-Air, Amana, and select Kenmore French door models too.W10323600 (AP4982137) replaces 1877189, 2222774, AH3492360, EA3492360, PS3492360.