Another Gas Tank Question

[DTR]

I have a gas tank another member is interested in, but I cannot swear to him it will fit. It is a plastic tank (supposedly) off a 2006 620. I read through the 'All About Fuel Tanks" thread and I'm more convinced it will work, BUT, the SKU code given, 96922200B does not match any of the numbers molded into the tank. Does this number make sense:
N DIS 586.3.044.1C

OR
E11.0140 EXT 1

HOW ABOUT:
11791.01.C
01S000702.03

Do any of thee give a clue if this tank will fit a 2006 M620? thanks, in advance, for any help you may be able to provide.