Our 2004 Kirkland clothes washer’s center agitator stopped agitating water like it should. I researched the web and found this is an easily fixed problem. From Amazon I ordered an “Upgraded 285811 Medium Cam Agitator Repair Kit” which will come the next day. ($9)
Unfortunately, the 7/16 bolt securing the agitator assembly is corroded to the point it could not be removed with a simple socket wrench. The bolt is recessed 6 inches which complicates the bolt’s removal if the socket slips on the corroded bolt head. I used a long drill bit and drilled a hole in the bolt head and used an easy-out to eventually remove the bolt. I also ordered a new bolt off Amazon for $8. (Part number 358237)
I received parts a day after I ordered them. The assembly pictures are poor but I was able to figure the assembly out. Now the upper portion of the agitator bushes the water in just one direction, as designed.