Can someone tell me what the entire fuel pump assembly includes. 2009 Mazda 5 Grand Touring van.

 

It should be under the right passenger seat. You will have to remove the seat and cut the carpet underneath. Then you should see the fuel pump and after remove the fuel line and screws you can remove it. When disconnecting the fuel lines have a small bowl to catch the fuel in the line. You also need a fuel line disconnector tool.

Here's a good youtube video on it.