Beck/Arnley 158-0980 Engine Coolant Temperature Sensor

The Beck/Arnley 158-0980 Engine Coolant Temperature Sensor (ECT Sensor) is a direct-fit OE replacement designed to restore proper engine management function. This sensor monitors coolant temperature and transmits real-time data to the engine control module (ECM), allowing the system to precisely regulate fuel delivery, idle quality, and cooling fan operation.

When the ECM detects a cold engine via the ECT sensor, it extends fuel injector pulse width to enrich the air/fuel mixture — replicating the function of a traditional choke. As the engine reaches normal operating temperature, the sensor signals the ECM to lean out the mixture and activate the electric cooling fans at the appropriate threshold.

Key Features:

• Direct OE replacement — matches original equipment form, fit, and function
• Restores correct air/fuel mixture calibration for cold and warm engine operation
• Enables proper cooling fan activation and deactivation cycles
• Restores normal engine idle quality and temperature regulation
• Engineered to meet foreign nameplate OE specifications
• Made from premium materials for long-lasting, reliable performance
• Sourced through Beck/Arnley's global network of quality-certified suppliers

Beck/Arnley specializes in premium replacement parts for foreign nameplate vehicles. Each part is vetted by product specialists working with a trusted global sourcing network to ensure you're installing the right part with confidence.