The engine coolant temperature sensor reports engine temperature to the computer, influencing fuel mixture, cooling fan operation, and the dashboard temperature gauge. A failing sensor can cause poor cold starts or overheating warnings that aren't real. This coolant temperature sensor is fitted for the Dodge Charger R/T 5.7L HEMI V8 (LX platform), matching the factory thread and connector for a direct, no-hassle install. Engineered as a direct replacement for reliable accuracy, it's an inexpensive fix to restore correct temperature readings and proper engine management. Reference: OE/interchange SKTX195