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This is a new 190°F thermostat from firepowerb, designed for the 6.7L Cummins ISB engine in Dodge trucks from 2008 to 2014.
It comes with the O-ring included, so you have everything you need for the swap.
The part number is 5292712, and it also crosses with 4929644, 3954829, and 4090093.

It's a direct replacement, easy to install—just pull the old one, clean the surface, and pop this one in.

If your truck is running cool or taking forever to warm up, a stuck-open thermostat is often the issue.

This 190° unit will get your engine up to operating temp and keep it there.
Comes with a 3-month warranty.

Simple part, big difference.
Keep that Cummins happy.

4.5 out of 5