Compatibility of Mid 2011 MacBook Air 13" Parts I am replacing the upper case of my MBA 2011 13", I found something on eBay but am unsure on the compatibility, my serial number is, C02GRGLVDJWT. 

Link to the part: 13" Apple MacBook Air A1466 Palmrest Upper Top Case 069-8219-A.  Any help will be greatly appreciated.
Serial No: C02GRGLVDJWT
Apple MacBook Air i5 1.7 13" (Mid-2011)
Part No: MC965LL/A
Model Identifier: MacBookAir4,2
Model No: A1369

Apple MacBook Air i7 2.0 13" (Mid-2012)
Part No: MD232LL/A
Model Identifier: MacBookAir5,2
Model No: A1466


Between these 2 machines, casing parts are NOT interchangeable