Product review (5 stars): High quality parts are worth the extra cost...do it right, or there is no point in doing it at all.
My 14 year old Whirlpool Duet washer bearings were shot...grinding noise and loose inner drum gave it away. I ordered this bearing set to do the repair myself and avoid the hassle and expense of replacing the washer (we really like the Duet).
When I took apart the washer, I unfortunately discovered that the spider arm (aluminum) attached to the inner drum (stainless steel) was about to fall apart due to galvanic corrosion between these dissimilar metals when subjected to water over the years. This design flaw is common in front loaders, but is essentially designed to fail due to the above mentioned issue.
Contemplating a $450 inner drum (you cannot order the spider arm separately), a new washer was looking more likely, and after spending the money for these bearings... But some good research and reference to the original manual and documentation showed that the inner drum has a lifetime warranty. After 30 minutes on hold with Whirlpool support, they quickly agreed to ship me a replacement free of charge.
Five days later the new inner drum arrived. 2 hours later we had a functional washing machine with all the high wear parts replaced with new. We are looking forward to another 14 years of use from this washer now.