Product review (5 stars): Original Whirlpool parts; did the job!
Exact replacement for the worn parts from my Whirlpool LA9680XWW0 .

You'll need a long extension for your socket wrench (I think I used a 10") but other than that it's an easy repair job.  There was still black grease on the bolt when I removed it so I tried to preserve as much as could through the rubber washer exchange (the old one was dry and cracked); but beware you might otherwise need some grease (I assume there as a last line of protection against leakage; or maybe to keep the bolt from rusting in place...).

The bag of parts I received stated that it was official Whirlpool parts, and everything seemed good quality.  (But I have only run one load through it so can't say yet if it holds up -- but I will update this review if it doesn't!)  I made a point of ordering it from "Sold by Amazon" since I got the idea some of the other sellers may be providing cheap knockoffs?

Bottom line: cheap, good, easy, and now my washing machine works great again.