NTK EF0037 Engine Coolant Temperature Sensor

NTK Engine Coolant Temperature Sensor EF0037

The NTK Engine Coolant Temperature Sensor EF0037 provides direct temperature feedback to the engine control system for accurate fuel and cooling strategy. It is built for import and domestic applications that require a 2-terminal, female connector sensor with a pin-style terminal design.

Compatible With Chevrolet Trax, Sonic, Cruze, Volt, Spark EV, Buick Encore, Cascada, Cadillac ELR, ATS, Malibu, and Saturn Astra applications listed below, this NTK sensor supports OE-style replacement needs for temperature monitoring in the cooling system.

Key Features

• Part number: EF0037
• NTK Engine Coolant Temperature Sensor for cooling system temperature input
• 2 terminal quantity with pin terminals
• Oblong female connector shape
• Wiring harness not included
• OE-focused sensor coverage for import and domestic vehicles
• Cross-reference: Standard Ignition TX229

Product Details

NTK builds its technical sensors using OE experience and validation methods that include thermal shock, vibration, and OBD verification. The EF0037 is part of the NTK Engine Coolant Temperature Sensor line, created to streamline sensor coverage under one brand while maintaining OE-level application support. For buyers searching for an engine coolant temperature sensor for Chevrolet Cruze, Chevrolet Sonic, or Buick Encore, EF0037 is a direct replacement option for the listed applications.

This sensor is used by the engine management system to read coolant temperature and help the vehicle adjust operating strategy based on engine heat. The NTK EF0037 is also referenced by part numbers such as 213-4688 and TX211 for the same application family.

What It Helps Address

• Incorrect coolant temperature readings
• Illuminated check engine light related to coolant temperature input
• Hard starting or rough running tied to temperature signal errors
• Cooling fan operation concerns caused by faulty sensor data
• Poor fuel control from inaccurate engine temperature reporting

Installation Notes and Tips

Verify the connector style, terminal count, and mounting location before installation. This part uses a female connector with two pin terminals and does not include a wiring harness. Fitment notes show location-specific applications such as radiator, water outlet, thermostat housing, and engine-mounted positions, so confirm the exact vehicle configuration before replacement.

• Fits 2021-2022 Chevrolet Trax, N/A
• Fits 2018-2021 Buick Encore, N/A
• Fits 2014-2020 Chevrolet Sonic, N/A
• Fits 2013-2020 Chevrolet Trax, located on water outlet
• Fits 2013-2020 Chevrolet Trax, located in radiator
• Fits 2016-2019 Buick Cascada, located on radiator
• Fits 2016-2017 Buick Encore, with gold-plated terminals
• Fits 2014-2016 Cadillac ELR, located in radiator
• Fits 2014-2016 Cadillac ELR, located in engine
• Fits 2016 Chevrolet Spark EV, N/A
• Fits 2014 Chevrolet Spark EV, N/A
• Fits 2013-2015 Buick Encore, located in radiator
• Fits 2013-2015 Buick Encore, located on water outlet
• Fits 2015 Chevrolet Cruze, located in radiator
• Fits 2011-2013 Chevrolet Cruze, located in radiator
• Fits 2015 Chevrolet Spark EV, located on radiator
• Fits 2015 Chevrolet Volt, located in engine
• Fits 2012-2013 Chevrolet Volt, located in engine
• Fits 2015 Chevrolet Volt, located in radiator
• Fits 2012-2013 Chevrolet Volt, located in radiator
• Fits 2014 Chevrolet Cruze, N/A
• Fits 2014 Chevrolet Volt, located in engine
• Fits 2013 Cadillac ATS, located in radiator
• Fits 2011-2013 Chevrolet Cruze, located on water outlet
• Fits 2013 Chevrolet Malibu, located in radiator
• Fits 2012-2013 Chevrolet Sonic, located on water outlet
• Fits 2012-2013 Chevrolet Sonic, located in radiator
• Fits 2011 Chevrolet Volt, located on water outlet
• Fits 2008-2009 Saturn Astra, located on thermostat housing

Quality Assurance

NTK is the only OE supplier with a full line of technical sensors in the aftermarket for import and domestic vehicles. The EF0037 is manufactured to meet or exceed OE specifications and is validated through testing that reflects real-world thermal and vibration demands.