Product review (5 stars): Consider YouTubing it first.
Works perfectly.  Try to attach wet /dry vac to washer discharge hose to empty as much water possible if washer stalled out in the middle of wash cycle.  Still be prepared to catch water draining out when you disconnect the old pump.  I find it VERY  valuable to YouTube repairs before even buying parts to see if I have the time, tools or skills tackle the job or just bite the bullet and hire it out.  Job took about 1-1.5 hours and collecting the draining water was the worst part.  Be careful not to over tighten the hose clamps, because you can split the thin plastic nipples.