Walker Products 211-1009 Engine Coolant Temperature Sensor ECT Sensor

The Walker Products 211-1009 Engine Coolant Temperature Sensor (ECT Sensor) is a direct-fit replacement designed to restore accurate coolant temperature monitoring to your vehicle's engine management system. The ECT sensor measures coolant temperature through a changing electrical resistance value and continuously transmits that data to the engine control module (ECM), enabling precise adjustments to fuel delivery, ignition timing, cold start enrichment, and cooling fan operation.

An inaccurate or failed coolant temperature sensor can cause a range of drivability issues. Common symptoms of a failing ECT sensor include:

• No-start condition or hard starting
• Engine flooding or rich fuel mixture
• Illuminated check engine light
• Poor fuel economy
• Erratic temperature gauge readings

Key Features:

• 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
• Direct-fit replacement — no modifications required for installation
• 100% tested for peak performance before leaving the facility
• Manufactured in an ISO 9001/IATF 16949 certified facility ensuring consistent quality control
• Meets or exceeds Original Equipment Manufacturer (OEM) specifications

Walker Products has been a trusted supplier to the automotive aftermarket since 1946 and is one of the largest privately owned manufacturers of engine sensors and fuel system components in the industry. The 211-1009 is the reliable, quality-assured choice for restoring proper engine management function.