Congrats on your "new to you" Tri Glide. Wishing you many miles of smiles on it!!!
They do not come with oil coolers, nor does HD make them. The water pump is in the traditional location of an oil cooler.
Unfortunately these Twin Cooled need an oil cooler even more than the air cooled...HD uses hotter cams and higher compression in the Twin Cooled. See more info on the subject HERE.
After I got my '14 Tri Glide we developed the Twin Cooled Oil Cooler. It does a great job at lowering oil and engine temps.
There is a thread on the forum here with pics, and info on the development and testing of these, along with other good info...
https://www.triketalk.com/forum/thre...ool-Oil-Cooler
Kevin