Product review (1 stars): Part number confusion
Only lasted 9 months.  I was speaking to Whirlpool customer support and she was saying this part number didn't match up with numbers from their reseller (repairclinicdotcom).  Whether that's a problem specific to my specific fridge or not, I can't say. When I bought this 9 months ago, I'm sure I would have checked to see if the part number was compatible with my fridge model number - I don't want to pay return shipping, after all  - but now when I enter my model number at the top of the page, it says 'model not found'.  So whether that was a mistake I made back when I bought it - buying a part not meant for my refrigerator (even though it fit fine and worked for the aforementioned 9 months) -  I'm not sure.  Regardless of all the above, it wasn't a sturdy part.  And from other reviews here, I see I'm not alone.

The customer service rep. directed me to go to whirlpool.com, click the "owner" link (top left), click on "find manuals", enter your model number, then scroll down near the bottom. There's a pdf called parts list.  Find your part number there, then you can check at repairclinicdotcom to see if there is an updated version.  Good luck and double check your homework.  I apparently didn't.