Question about Arctic Liquid Freezer III - 280 (Black)

Fits in easily, better get a 360 if possible

I have a 4000 D and it fits for the top binding. But be careful with the height of the RAM that touches the radiator otherwise take a 240

I don't have a 4000D. Why don't you google it? Just write "Corsair 4000D radiator size". Then you will get enough official information.