3972537
Thermostat
Cummins®
DISCONTINUED
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DESCRIPTION
A thermostat is a component in a truck's cooling system that regulates the engine's operating temperature. The part number 3972537 refers to a specific type of thermostat designed for use in certain models of trucks. The thermostat works by opening and closing a valve that controls the flow of coolant through the engine. When the engine is cold, the valve remains closed, forcing coolant to circulate within the engine block until it reaches operating temperature. Once this temperature is reached, the valve opens, allowing coolant to flow through the radiator and dissipate heat. Proper functioning of the thermostat ensures that an engine maintains optimal operating temperature which helps to prevent overheating and unnecessary wear on internal components.
SPECIFICATIONS
Service Part Topic
TSB180028
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* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty
coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.
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