Walker Products 211-1103 Engine Coolant Temperature Sensor ECT Sensor

The Walker Products 211-1103 Engine Coolant Temperature Sensor (ECT Sensor) is a direct-fit replacement designed to deliver accurate, real-time coolant temperature readings to your vehicle's engine control module (ECM). Proper ECT sensor function is critical for maintaining optimal engine performance, fuel efficiency, and emissions compliance.

How It Works:

The coolant temperature sensor measures engine coolant temperature through changing electrical resistance and transmits that data to the onboard computer. The ECM uses this signal to manage fuel injection, ignition timing, cold start enrichment, and cooling fan operation. A failed or degraded sensor can cause symptoms including hard starts, engine flooding, poor fuel economy, and an illuminated check engine light.

Key Features:

• Provides the ECM with accurate real-time coolant temperature data
• Engineered to match OEM specifications for resistance values, thermal response, and signal output
• Built with durable, heat-resistant materials to withstand constant coolant exposure, vibration, and extreme temperature cycles
• Direct-fit design for straightforward installation with no modifications required
• Meets or exceeds original equipment manufacturer (OEM) standards
• Manufactured by an ISO 9001 / IATF 16949 certified facility

Walker Products has been a trusted supplier of fuel system components and engine management sensors to the automotive aftermarket since 1946. The 211-1103 is a reliable, quality-tested replacement that integrates seamlessly with factory engine management systems.