Walker Products 211-1122 Engine Coolant Temperature Sensor ECT Sensor

The Walker Products 211-1122 is a direct-fit replacement Engine Coolant Temperature (ECT) Sensor engineered to restore accurate coolant temperature monitoring to your vehicle's engine management system. Designed to meet or exceed OEM specifications, this sensor integrates seamlessly with the factory engine control module (ECM) for reliable, trouble-free performance.

How It Works:

The ECT sensor measures coolant temperature through variable electrical resistance and transmits that data to the onboard computer in real time. The ECM relies on this signal to manage fuel injection, ignition timing, cold start enrichment, and cooling fan operation — all critical functions for engine efficiency and longevity.

Key Features:

• OEM-matched performance — Engineered to match OE resistance values, thermal response, and signal output for accurate ECM integration
• Direct-fit replacement — Installs without modification, using the factory connector and mounting location
• Durable construction — Built with heat-resistant materials to withstand continuous coolant exposure, vibration, and extreme temperature cycles
• Broad OE cross-reference — Replaces numerous OEM part numbers across multiple makes and models
• ISO 9001 / IATF 16949 certified manufacturing — Produced under strict quality management standards

Common Failure Symptoms This Part Addresses:

• Check engine light (CEL) illuminated
• Poor fuel economy or reduced engine power
• Rough idle, surging, or stalling
• Hard starts or engine flooding

Walker Products has been a trusted supplier to the automotive aftermarket since 1946. The 211-1122 ECT sensor delivers the fit, form, and function technicians depend on for a lasting repair.