Product review (4 stars): Great product, painless install (But do your homework first!)
This unit comes with basically all the wiring harnesses and various hardware associated with this type of icemaker. The included documentation is generic, but that's expected for a universal fit. I'd recommend watching youtube tutorials to get familiar with the installation procedure. I docked a star because the included ice bin is not the proper form factor for my older fridge, but again you can expect some compromise with a universal unit so overall I'm happy. Unlike many reviewers I bought this not to replace an old icemaker but to add-on one to an old "icemaker ready" refrigerator.  I was thrilled when the first cycle created perfect ice cubes and I didn't have to change the fill adjustment!