Walker Products 211-1112 Engine Coolant Temperature Sensor ECT Sensor

The Walker Products 211-1112 Engine Coolant Temperature Sensor (ECT Sensor / CTS) is a direct-fit OE replacement designed to restore accurate coolant temperature monitoring to your vehicle's engine management system. Using variable electrical resistance to detect coolant temperature, the sensor continuously feeds real-time data to the engine control module (ECM), enabling precise control over fuel delivery, ignition timing, cold-start enrichment, and cooling fan operation.

Key Features:

• Measures engine coolant temperature via changing resistance and transmits data to the onboard computer
• 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 swings
• Direct-fit replacement — installs without modification for a fast, hassle-free swap
• Meets or exceeds original equipment manufacturer (OEM) specifications
• Manufactured by an ISO 9001 / IATF 16949 certified facility
• Every sensor is quality inspected and tested before shipment

OE Cross-Reference Part Numbers: 95VW10884AA, 1669948, 357919501A, 95VW10884AB, 6U0919501B, 1331294

Common symptoms of a failed coolant temperature sensor include hard starts, engine flooding, illuminated check engine light, and reduced fuel economy. Walker Products recommends sensor inspection or replacement every 25,000–35,000 miles. Walker Products has been a trusted supplier to the automotive aftermarket since 1946, offering broad coverage across a wide range of domestic and import vehicles.