The tank is an aftermarket "Standard Automotive" brand which I think is supposed to be an improved design. The first one I bought was well over $100 but this one was on sale for $27 cdn and that's with cap, coolant sensor and trans stat. Everything looks top notch other than the lower clip which is made from crappy but shiny metal and sticks out further than the original I think so people don't think it's missing. There is no slot for the clip so it has no purpose and I just left it off. I'm 90% sure it's all intentional but it would be nice to know that for sure it's not going to be a problem.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)