Product review (5 stars): Great replacement for Whirlpool Model X74 QC1 Part # 2188746.
Replaced Whirlpool Model X74 QC1 Part # 2188746.  Works great, along with a new Icemaker my refrigerator is making ice again.  it was easy to install,  The old one was held on by a few screws and the quick release made it easy to remove the old one and install this new one.  it doesn't come with instructions, but if you can't figure out how to release the water line, you can find lots of videos via a quick Google search.