Walker Products 211-1029 Engine Coolant Temperature Sensor ECT Sensor

The Walker Products 211-1029 Engine Coolant Temperature Sensor (ECT Sensor) is a direct-fit replacement designed to deliver accurate, real-time coolant temperature data to your vehicle's engine control module (ECM). Proper ECM input from the coolant temperature sensor is critical for optimizing fuel injection, ignition timing, cold start enrichment, and cooling fan operation.

Walker Products sensors use a thermistor-based design that measures coolant temperature through changing electrical resistance, relaying that signal to the onboard computer. The ECM uses this data alongside other inputs to calculate the correct fuel delivery and maintain optimal engine performance, fuel economy, and emissions.

Key Features:

• Direct-fit, OE-style replacement — no modifications required
• Engineered to match OE specifications for resistance values, thermal response, and signal output
• Built with durable, heat-resistant materials to withstand constant exposure to coolant, vibration, and extreme temperature cycles
• 100% tested for peak performance and worry-free operation
• Manufactured in an ISO 9001/IATF 16949 certified facility

Common symptoms of a failed coolant temperature sensor include hard starting, engine flooding, poor fuel economy, erratic temperature gauge readings, and an illuminated Check Engine light. Recommended service interval is every 25,000–35,000 miles.

Walker Products has been a trusted supplier of fuel system components and engine management sensors since 1946. The 211-1029 is engineered and tested to meet or exceed OEM fit, form, and function standards — delivering the reliability that professional technicians and DIY enthusiasts depend on.