This video will teach you how to replace your thermostat and gasket on a 2011 - 2019 Ford Explorer 3.5 V6. Use OEM parts or NAPA parts, Zerex by Valvoline G05 Antifreeze. DIY.
Was going to ask the same question about draing coolant. May not be required since level of housing is so high. Only a little may leak out? Not a mechanic but a handyman...lol
