Product review (5 stars): Works as a great replacement for part 8540024-B
When my older model Whirlpool Duet washer drain pump went out, I wasn't able to find an identical replacement part.  After looking high and low this part not only fit the electrical connector used for my old pump, but also the mounts aligned perfectly on the washer casing as well.  Good thing this unit includes the drain housing as well because the pump alone was not compatible with my old housing.  Both the hose from the wash basin and the hose to the external drain matched in size and I've not had any leaks.  If I run into problems, I'll update the review, but for now this looks to be working great.