Q: Can someone please tell me which cord and adapter to order?

You need the standard MagSafe adapter. The MagSafe 2, I believe only started shipping with 2012 models.

Good luck,

Clinton

MacBook Pro (15-inch Late 2011), OS Mavericks 10.9.4, 16GB Crucial RAM, Crucial M500 960GB SSD, 27” Apple Thunderbolt Display

You should be able to identify the MagSafe adapter and cord from Support page:

•Intel-Based Apple notebooks: Identifying the right power adapter and power cord

•Apple Portables: Troubleshooting MagSafe adapters

Hopefully this helps. If you have a defective adapter, take it along if you happen to

have access to an Apple Store or Authorized Apple Service Provider, to match it.

PS: there is a MagSafe plug adapter to use one kind of MagSafe with later model

http://eshop.macsales.com/item/Apple/MD504ZMA/

PPS: MagSafe 85W Adapter compatible with your computer, see specs:

http://eshop.macsales.com/item/Apple/MC556LLA/

PPPS: Six foot AC power cable, replaces duck-head:

http://eshop.macsales.com/item/Apple/PWRCBLMSA/

Good luck & happy computing!

edited 2x