Walker Products 211-1015 Engine Coolant Temperature Sensor ECT Sensor OE Replacement

The Walker Products 211-1015 Engine Coolant Temperature Sensor (ECT Sensor) is a direct-fit OE replacement designed to provide the engine control module (ECM) with accurate, real-time coolant temperature data. This signal is critical for controlling fuel injection, ignition timing, cold start enrichment, and cooling fan operation — keeping your engine running efficiently under all conditions.

The ECT sensor works by measuring coolant temperature through a thermistor that changes electrical resistance with temperature fluctuations, transmitting that data to the onboard computer. The ECM uses this input — along with other sensor readings — to calculate the precise fuel delivery and spark timing needed for optimal combustion.

Common Symptoms of a Failed Coolant Temperature Sensor:

• No start or hard start condition
• Engine flooding or rich-running condition
• Illuminated check engine light (MIL)
• Poor fuel economy

Key Features:

• OE-Matched Performance — Engineered to match OEM specifications for resistance values, thermal response, and signal output
• Direct-Fit Replacement — Designed as a drop-in replacement with no modifications required
• Durable Construction — Built with heat-resistant materials rated for constant exposure to coolant, vibration, and extreme temperature swings
• Accurate Signal Output — Precise thermal response supports efficient fuel management, emissions control, and cold-start performance
• ISO 9001 / IATF 16949 Certified Manufacturing — Produced under rigorous quality control standards including statistical process control (SPC)

Walker Products has been a trusted supplier to the automotive aftermarket since 1946 and is one of the largest privately owned manufacturers of fuel system components and engine management sensors. Recommended sensor service interval is every 25,000 to 35,000 miles.