Walker 211-2037 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor Overview

Walker 211-2037 is an engine coolant temperature sensor for vehicles that rely on accurate coolant data for ECM control. It reports real-time temperature information so the engine computer can manage fuel delivery, ignition timing, cold-start enrichment, and cooling fan operation.

Built as a direct-fit sensor with a blade terminal, square connector, 2 terminals, and a female connector design, this Sensor Only part is made for straightforward replacement in factory-style applications. It is a practical choice for Nissan Rogue, Nissan Sentra, Nissan Juke, and INFINITI QX50/QX55 coolant temperature sensor service.

Sensor Only Line Details

Walker’s Sensor Only line focuses on replacement sensors engineered to match OE resistance values, thermal response, and signal output. That matters when the ECM depends on stable coolant temperature input for drivability and emissions control. Part number 211-2037 follows that approach for factory-system integration.

Key Features

• Engine coolant temperature sensor for ECM temperature input
• Direct-fit design for OE-style replacement
• Blade terminal type with square connector shape
• 2-terminal, female connector configuration
• No wiring harness included
• Heat-resistant construction for coolant and temperature cycling exposure
• Walker 211-2037 replacement sensor for select Nissan and INFINITI applications

Detailed Description

Walker 211-2037 is built to provide accurate coolant temperature readings to the engine control module. That signal affects fuel injection, ignition timing, cold-start operation, and radiator fan control, making sensor accuracy important for consistent engine management. The sensor is engineered to align with OE specifications for resistance, thermal response, and output signal, helping maintain proper communication with the factory system.

This part cross-references Timken 4244 and VEMO V38-72-0012 for the same application. It is a direct replacement option for 2017-2019 Nissan Rogue, 2017-2019 Nissan Sentra, 2011-2017 Nissan Juke, 2019-2022 INFINITI QX50, and 2022 INFINITI QX55 coolant temperature sensor service. If you are replacing a failed sensor on a Nissan Sentra or INFINITI QX50, Walker 211-2037 provides the correct sensor-only format for the listed applications.

Common Issues This Sensor Can Address

• Check engine light related to coolant temperature signal faults
• Incorrect temperature readings sent to the ECM
• Hard cold starts or poor cold-start fuel enrichment
• Cooling fan operation problems tied to temperature input
• Rough running caused by inaccurate engine temperature data

Installation Notes and Tips

Confirm connector shape, terminal count, and sensor location before installation. This part uses a square female connector with 2 blade terminals and does not include a wiring harness. For best results, inspect the connector, wiring, and coolant condition before installing the new sensor, and verify the engine block mounting point matches the listed application.

Fits 2019-2022 INFINITI QX50, location-engine block; sensor only. Fits 2022 INFINITI QX55, location-engine block; sensor only. Fits 2017-2019 Nissan Rogue, sensor only. Fits 2017-2019 Nissan Sentra, location-engine block; sensor only. Fits 2011-2017 Nissan Juke, location-engine block; sensor only. Fits 2010 Nissan Sentra, Calif; sensor only.

Quality Assurance

Walker Products engineers this coolant temperature sensor to match OE-style resistance values, thermal response, and signal output for reliable factory-system integration. Durable, heat-resistant materials are used to withstand coolant exposure, vibration, and repeated temperature changes.