Product review (5 stars): Avoided the $200 service call.
My whirlpool duet washer and I are locked in a stubborn battle of wills.  She likes to take a few days off now and again and I crack her open and fix her up pronto.  Thank you, Youtube, for walking me through yet another repair. This $50 part was a terrific option compared to the whole drain assembly I found at part stores and Whirlpool.  Less money, less waste (no 'new' plastic part when the old one was perfectly fine,) and easy to install.  Quick shipping. Works like a charm.