Change thermostat

[Rick Ritter]

2019 ,df150,replaced spark plugs,oil,water pump,anodes,is there a schedule to replace thermostat I can’t find it in manual,I don’t have a problem just wondering when or if I should replace.300 hrs

[Rick Ritter]

No advise?

[Moonlighter]

There is no scheduled replacement time that I know of.

Worth checking them every few years and replace if necessary?

[Rick Ritter]

Thank you moonlighter,I couldn’t find no schedule so I wanted to see what you thought,