My 2014 factory service manual states: The factory fill fluid capacity of the 6F24 Automatic Transaxle is 7.5 qt.. Service fill with full torque converter and fluid cooler is 5 qt..
In the service section, they state that after draining (drain plug), add 4.3 quarts. Then start the vehicle and run in neutral for a few minutes. Stop, add 1 quart. Then do the fluid level check procedure and add or remove fluid as needed.
The dipstick part number is 10323A and can be bought online for about $25:
https://mopar.snapon.com/online-catalog.aspx. Besides the drain plug, there are two ports. One is the dipstick port and one is the fill port.
Hope this helps.