Product review (4 stars): It works
The image was exactly what came in the package.  No instructions came with the package, other than saying you needed to replace all the parts.

I bought this for the white plastic piece, so did not need the door.  All the other pieces are required.  Note that the door does not have a built in heating element like my existing door does, so I just used my old door.  It works fine.  If you need to replace the door with one that has a heating element, you'll have to go to Whirlpool's site (and pay 2x more).

The following link has pictures and instructions.
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With the instructions, it was pretty easy to fix.