Apple Computer, MacBook Pro 15-inch (Integrated Graphic) 2.0/2.3/2.6 GHz Core i7 (i7-4750HQ, i7-4850HQ, i7-4960HQ),
Compatible Order Number, ME294LL/A, BTO/CTO,
Compatible Model Number, A1398,
Model Year, Late 2013,
Part Name, Logic Board 2.0 GHz (16GB),
Manufacture Part Number, 820-3662-3,
EMC Number, EMC 2674,
EEE Code, FJQW, FJRP, FJRR,
Compatible Apple Computer, MacBook Pro - IG (15-inch, Late 2013)
Order you product here:
661-8304 Logic Board 2.0GHz (16GB) for MacBook Pro 15-inch Late 2013 A1398 ME294LL/A, BTO/CTO (820-3662),
661-8304
source
http://info.applepartsellers.com/661-8304-logic-board-2-0ghz-16gb-for-macbook-pro-15-inch-late-2013-a1398-me294ll-a-bto-cto-820-3662