923-0092 Left Fan A1398 for MacBook Pro 15inch Retina Late 2012 and Early 2013 NB-5907W
This is a replacement left fan for the Retina MacBook Pro. If you are having temperature problems or abnormal fan noise on the left side of your machine, you may need this.
Apple part number: 923-0092
Compatible models: A1398
923-0092 Left Fan A1398 for MacBook Pro 15inch Retina Late 2012 and Early 2013