How to install oven light assembly

I ordered (order # 1122134) and received part AP4100487, also called WPL74011278, to replace my oven light receptacle. The original receptacle in my oven uses a common-looking light bulb. The new one does not and the “bulb” is nothing I’ve ever seen before. Here are my questions:

  1. Is this really the right replacement part?
  2. The light cover does not seem to be removeable. Should it be? If so, how is it removed? If not, when the “bulb” burns out will I have to replace the whole part again? (The cover on the original screws off to get to the bulb.)
  3. If this really is the correct replacement part how do I go about getting the old one out and the new one in? (The part did not come with any instructions.)
    Thank you!

Here are the parts
Replacement parts for SVE47100B models | AppliancePartsPros.com

Clicking on the parts picture will bring up a different view.

Sounds like you may have received the wrong part.
I would call AppliancePartsPros.

Here is a service manual that should help with the install.
http://www.servicematters.com/maytag_library/docs/16010191.pdf