Need part #'s for 180 thermostat and gasket?

[Chipstien]

The subject says it all. I am going to Cummins NW today. Can someone help me out.

 

[pwr2tow]

I think the 2001 takes a 190 degree thermostat.



180 degree 3954194

190 degree 3937171



The gasket is part of the thermostat, You can run either thermostat in your truck. Some say the 180 will give you better fuel mileage.



Ron

 

[Chipstien]

Thanks Ron.

Mileage is the reason I am trying it. I have a good log of current mileage and am going to post the results of the lower temp Stat.