Product review (4 stars): Cause of UL Error - Loose Nuts
Fairly easy to install, especially if you have an extra set of hands. I replaced for constant unbalanced load error on my Whirlpool washer as suggested on many forums. This may be a common cause of unbalanced load error but not on my washer. Continued to get uL error after kit installation and started completely taking washer apart out of frustration. I ended up finding both the motor rotor and drum shaft nuts loose. Tightened them up and it's worked great ever since.  Nice QA Whirlpool.