923-0101 Apple RIght Fan Duct, A1398 for MacBook Pro 15inch Retina Late 2012 and Early 2013 NB-5913W
This is a replacement right fan duct for the Retina MacBook Pro released in mid 2012. This is not the fan. This is the duct which focuses the air flow.
Apple part number: 923-0101
Compatible models: A1398
923-0101 Apple RIght Fan Duct, A1398 for MacBook Pro 15inch Retina Late 2012 and Early 2013