12V 5.9 Cummins Diesel Coolant

I run a 190 stat, steady needle after the stat opening initial swing.

I like the more consistent cab heat & the warmer oil temperature.

Yes, 440 stat, or a NAPA #532090 both 195f for your application.

This is what I have:

EF53AF84-C0FC-4117-A7BF-00000BF95A86.jpeg
 
Yep, 440 stat.

Doesn't have a bypass disc/plug, but not an issue unless you're towing heavy in hot weather.
 
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