$62.99
$81.89
This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing. We make it easy to buy truck parts online.
We honor the warranty provided by the original equipment manufacturer.
DESCRIPTION
A thermostat is a component in a truck's engine cooling system that regulates the flow of coolant to maintain optimal engine operating temperature. The part number for this specific thermostat is 3928640. When the engine is cold, the thermostat remains closed, preventing coolant from circulating through the engine block and radiator. As the engine warms up, the thermostat gradually opens, allowing coolant to flow through the radiator and back into the engine block. This helps prevent overheating and ensures efficient combustion by maintaining a consistent temperature range. If a thermostat fails or becomes stuck open or closed, it can cause issues such as poor fuel economy, reduced power output, and excessive wear on internal components.
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SPECIFICATIONS
Service Part Topic
05T0-3
Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
2.375 x 2.375 x 2.75 in
Weight
0.2 lbs
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* This information is provided as is and may be out of date.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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