Product review (1 stars): BE ADVISED THAT THIS IS A "BAIT AND SWITCH" SCAM... NOT THE GENUINE PART!!!
At first, I was thrilled when I found this item on Amazon at such a great price.  Most of the time I find great prices on Amazon, so I wasn't surprised.  However, in this case, you only get what you pay for.

The Amazon.com listing for this part sold by APPLIANCE TECH PARTS is described as "Whirlpool Agitator Cam Repair Kit 285811 285746 3351001, by Whirlpool".  In addition, it again uses the Whirlpool name in other areas of the listing.  Further, it contains a photograph of the GENUINE Whirlpool Cam Repair Kit in its FSP (Factory Service Parts) bag just as you would receive it if you bought it from Whirlpool.

In fact, however, IT IS NOT A GENUINE WHIRLPOOL (FSP) PART!!!  What they are actually selling you is a Supco (Sealed Unit Parts Company) item that is a knock-off of the genuine item.  I have no idea of the quality of this Supco item, but I definitely didn't want to take a chance on it.  Besides, it's only a great price if it's for the factory item... knock-offs always cost substantially less.  What makes this even worse is that, when I went through Amazon's online process to return the item, since it wasn't sold by Amazon the seller requires that you pay for the return shipping.  I guarantee you that's not gonna' happen with me.

I contacted Amazon customer service and they resolved the matter to my complete satisfaction immediately.  Ya' know, I really love Amazon's customer service... they're the best!

Perhaps you won't mind buying this cheaper part because you just want the cheapest possible repair, but even if that's true, you have a right to know what you're actually buying.  APPLIANCE TECH PARTS has an obligation to correctly identify what they are selling, including stating very clearly that it is a "generic" part.  On my receipt, which was in the package, it states, "Comments: Quality Generic Part", but they need to clearly state that in their description!

Whirlpool sells the genuine item on their website for $21.61 plus tax and shipping, and my local appliance service and repair company sells it for $18.90 plus tax.  I wound up buying the genuine part from my local appliance service and repair company because I wanted only the factory parts (the original parts lasted 12 years).

Hopefully my review will serve as a "heads up" for any potential purchaser so that at least they will know what they're buying.