Apple Computer, MacBook Pro 13-inch Core i5 2.4/2.5 GHz (i5-2435M, i5-3210M), MacBook Pro 13-inch Core i7 2.8/2.9 GHz (i7-2640M, i7-3520M), Model Year, Late 2011, Mid 2012, Part Name, Speaker (Left), Manufacture Part Number, 609-0310-C, 609-0310-12, Compatible Apple Order Number, MD313LL/A, MD314LL/A, MD101LL/A, MD102LL/A, Compatible Model Number, A1278, EMC Number, EMC 2555, EMC 2554, EEE Code, N/A, Compatible Apple Computer Family, MacBook Pro (13-inch, Late 2011), MacBook Pro (13-inch, Mid 2012)
Order you product here: 922-9772 Speaker (Left) for MacBook Pro 13-inch Late 2011-Mid 2012 A1278 MD313LL/A, MD314LL/A MD101LL/A, MD102LL/A (609-0310-C, 609-0310-12), 922-9772
source http://info.applepartsellers.com/922-9772-speaker-left-for-macbook-pro-13-inch-late-2011-mid-2012-a1278-md313ll-a-md314ll-a-md101ll-a-md102ll-a-609-0310-c-609-0310-12