I thought Whirlpool quit making the parts all together when they ceased production of their direct drive top loaders.
By law, manufactures are supposed to provide parts up to 10 years. Of course, not all of them follow that rule and it's not firmly enforced unless one has deep pockets for lawsuits. This is one of the reasons why Maytag parts were still widely available through 2016 for orbital machines....which a large sum of those transposed to the much older machines sans the transmission in the washers. However, Whirlpool did use the technique to discourage buying those parts/repairing machines by massively increasing prices on parts, some of them right off the bat after acquiring Maytag in 2006. I was chatting it up an old Maytag repairmen back in 2008 (he was in his 60's and starting working on Maytags back in 1962) and he said Whirlpool jacked the price of the rubber feet from $.75 a piece to $4.00 overnight soon after buying Maytag.