DIY: Water Pump, Thermostat, Hoses & Coolant Flush : X5 3.0 Auto

[Bmwe5320023.0]

For the thermostat+housing I'd recommend Four Seasons from Rockauto. It's aluminum and will last forever.
For the water pump, I got Beck/Arnley which comes with a metal impeller, so it will also never break. It says on both the box and on the pump itself that it's made in Germany

I replaced all the hoses with Gates, which as far as I know is a great company.
Unfortunately most of then seem to be made in China, and only some of them are from US, Turkey, Mexico and Germany.
I also replaced WP pulley and PS pulleys with aluminum ones instead of plastic.