Which of these condensers do we have?

[Weborific]

Hi. I need to replace my A/C condenser since it has a leak. Which of the following 4 listed on this page do we have? Does it vary on our cars?

http://www2.partstrain.com/v5/products.php?N=1667+4294962783+4294967163+9170

Can I get one just as good but cheaper elsewhere? My "dealer" wants $580 just for this part... THANKS!!