In my old washer this coupling will routinely break almost each year. After ten years I have mastered the replacement process (removing the case, turning machine upside down, and detaching the motor) in under 15 minutes.

Pro tip: if you decide to DIY, order half a dozen of these [1] couplings in advance.

[1] https://www.amazon.com/3364003-3364002-REPLACEMENT-KITCHENAI...