Product review (4 stars): Save that repair bill!
This is the exact replacement for my "defective" Whirlpool Ice Crusher/Bucket.  My Whirlpool Gold refrigerator is less than two years old and I noticed some white powder clumps floating in our drinks.  I picked one of the clumps out of my drink and found when I pressed it between my fingers, it was a white powder floating together as a clump.  I checked the water coming out of the refrigerator door and it was clear, so then I checked the ice.  That was the problem!  Turns out, the white plastic "sweeper" that pushes the crushed ice/cubes into the chute was grinding the bottom of the ice crusher/bucket into a powder and dispensing it along with the ice.  I contacted Whirlpool to see if there was a recall.  No recall.  They offered to send someone out, but made it clear it was not a warranty issue.  $$$  They connected me to a parts distributor that wanted $150 something for the part and then shipping.  I found some other more reasonable options online and then found Amazon had it for under $118 with Prime Shipping.  It was packed well, the assembly was wrapped in bubble wrap in a box within a box with shipping paper.  I simply washed the bucket, let it dry and then set it in place of the old ice crusher/bucket.  Works like new.  I just hope it lasts.

I didn't give it five stars, but only because I suspect it will have the same issue after a short amount of usage as it looks to be a genuine "Whirlpool" part.  Any issues I have are with Whirlpool and not Amazon!  I plan on hanging onto the old parts and if this one wears like the original, I'll replace the auger, auger screw and add a nylon washer under the sweeper to keep it off the ice bucket bottom.  It's not like I have half a dozen kids grinding out ice all day long.  This is clearly a Whirlpool problem and I'm just glad Amazon has this part!

Update 10/2014: All I can say is Whirlpool really messed up the design of their ice storage/dispensing system.  Mine is constantly freezing in the chute and clogging.  This causes me to remove the ice bucket, which is also frozen to the shaft.  The pressure necessary to free the shaft from the ice bucket is what I think is causing the crusher to shift and scrape plastic into the ice as it is dispensed.  I'm now using graphite spray on the shaft and connector to make it release easier, but frost and ice buildup shouldn't be happening.  Really a bad design.