Quick Ship SKU #: MOP-05086739AB Mopar 05086739AB OE Replacement Thermostat 03-07 Dodge 5.9L Cummins

Is your Cummins starting to run hotter than normal? Over time, your thermostat's spring will lose some of its elasticity and not properly open and close at the correct rate. This is a direct replacement that will simply bolt right in place of your existing unit.