
Walker 211-91042 Engine Coolant Temperature Sensor
Engine Coolant Temperature Sensor for Mazda, Ford, and More
Walker Products 211-91042 is an engine coolant temperature sensor built to report real-time coolant temperature to the ECM. Accurate temperature input helps the engine manage fuel delivery, ignition timing, cold-start enrichment, and cooling fan operation.
This Walker Full Service Kit application is a direct-fit replacement for a wide range of Mazda, Ford, Mercury, and Land Rover vehicles, including Mazda 3, Mazda 6, Mazda MX-5 Miata, Ford Fusion, and Mercury Milan applications.
Key Features
- Blade terminal type with a 2-terminal electrical connection
- Female rectangle connector for factory-style fitment
- 12.0 threaded end diameter
- No wiring harness included
- Engineered to match OE resistance values, thermal response, and signal output
- Heat-resistant construction for exposure to coolant, vibration, and temperature swings
Product Details
Walker Products part number 211-91042 is designed to deliver stable coolant temperature readings so the ECM can make the correct adjustments during warm-up, normal driving, and high-temperature operation. The sensor’s direct-fit design supports straightforward replacement on vehicles such as the 2004-2009 Mazda 3, 2003-2008 Mazda 6, 2006-2009 Ford Fusion, and 2006-2009 Mercury Milan. It also serves additional applications across the 1997-2015 model years listed below. If you are replacing a failed coolant temp sensor or diagnosing a check engine light, 211-91042 provides the OE-style electrical characteristics needed for factory system integration.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues This Sensor Can Address
- Incorrect coolant temperature readings at the ECM
- Hard cold starts or extended warm-up behavior
- Cooling fan operation concerns tied to temperature input
- Fuel mixture or ignition timing issues related to sensor signal errors
- Check engine light conditions caused by coolant temperature sensor faults
Installation Notes and Tips
- Verify connector shape, terminal count, and threaded end diameter before installation.
- Inspect the connector and wiring for corrosion, damage, or coolant intrusion before replacing the sensor.
- Confirm the engine location and application notes for your vehicle, especially on Mazda 3 and Mazda 6 listings with engine-specific notes.
- Use the vehicle’s service procedure for coolant level management and sensor removal/installation.
Quality Assurance
Walker Products builds this coolant temperature sensor to OE specifications for resistance, thermal response, and signal output, supporting reliable operation with factory engine management systems.
Original: $37.64
-65%$37.64
$13.17Walker 211-91042 Engine Coolant Temperature Sensor
Engine Coolant Temperature Sensor for Mazda, Ford, and More
Walker Products 211-91042 is an engine coolant temperature sensor built to report real-time coolant temperature to the ECM. Accurate temperature input helps the engine manage fuel delivery, ignition timing, cold-start enrichment, and cooling fan operation.
This Walker Full Service Kit application is a direct-fit replacement for a wide range of Mazda, Ford, Mercury, and Land Rover vehicles, including Mazda 3, Mazda 6, Mazda MX-5 Miata, Ford Fusion, and Mercury Milan applications.
Key Features
- Blade terminal type with a 2-terminal electrical connection
- Female rectangle connector for factory-style fitment
- 12.0 threaded end diameter
- No wiring harness included
- Engineered to match OE resistance values, thermal response, and signal output
- Heat-resistant construction for exposure to coolant, vibration, and temperature swings
Product Details
Walker Products part number 211-91042 is designed to deliver stable coolant temperature readings so the ECM can make the correct adjustments during warm-up, normal driving, and high-temperature operation. The sensor’s direct-fit design supports straightforward replacement on vehicles such as the 2004-2009 Mazda 3, 2003-2008 Mazda 6, 2006-2009 Ford Fusion, and 2006-2009 Mercury Milan. It also serves additional applications across the 1997-2015 model years listed below. If you are replacing a failed coolant temp sensor or diagnosing a check engine light, 211-91042 provides the OE-style electrical characteristics needed for factory system integration.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues This Sensor Can Address
- Incorrect coolant temperature readings at the ECM
- Hard cold starts or extended warm-up behavior
- Cooling fan operation concerns tied to temperature input
- Fuel mixture or ignition timing issues related to sensor signal errors
- Check engine light conditions caused by coolant temperature sensor faults
Installation Notes and Tips
- Verify connector shape, terminal count, and threaded end diameter before installation.
- Inspect the connector and wiring for corrosion, damage, or coolant intrusion before replacing the sensor.
- Confirm the engine location and application notes for your vehicle, especially on Mazda 3 and Mazda 6 listings with engine-specific notes.
- Use the vehicle’s service procedure for coolant level management and sensor removal/installation.
Quality Assurance
Walker Products builds this coolant temperature sensor to OE specifications for resistance, thermal response, and signal output, supporting reliable operation with factory engine management systems.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Engine Coolant Temperature Sensor for Mazda, Ford, and More
Walker Products 211-91042 is an engine coolant temperature sensor built to report real-time coolant temperature to the ECM. Accurate temperature input helps the engine manage fuel delivery, ignition timing, cold-start enrichment, and cooling fan operation.
This Walker Full Service Kit application is a direct-fit replacement for a wide range of Mazda, Ford, Mercury, and Land Rover vehicles, including Mazda 3, Mazda 6, Mazda MX-5 Miata, Ford Fusion, and Mercury Milan applications.
Key Features
- Blade terminal type with a 2-terminal electrical connection
- Female rectangle connector for factory-style fitment
- 12.0 threaded end diameter
- No wiring harness included
- Engineered to match OE resistance values, thermal response, and signal output
- Heat-resistant construction for exposure to coolant, vibration, and temperature swings
Product Details
Walker Products part number 211-91042 is designed to deliver stable coolant temperature readings so the ECM can make the correct adjustments during warm-up, normal driving, and high-temperature operation. The sensor’s direct-fit design supports straightforward replacement on vehicles such as the 2004-2009 Mazda 3, 2003-2008 Mazda 6, 2006-2009 Ford Fusion, and 2006-2009 Mercury Milan. It also serves additional applications across the 1997-2015 model years listed below. If you are replacing a failed coolant temp sensor or diagnosing a check engine light, 211-91042 provides the OE-style electrical characteristics needed for factory system integration.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues This Sensor Can Address
- Incorrect coolant temperature readings at the ECM
- Hard cold starts or extended warm-up behavior
- Cooling fan operation concerns tied to temperature input
- Fuel mixture or ignition timing issues related to sensor signal errors
- Check engine light conditions caused by coolant temperature sensor faults
Installation Notes and Tips
- Verify connector shape, terminal count, and threaded end diameter before installation.
- Inspect the connector and wiring for corrosion, damage, or coolant intrusion before replacing the sensor.
- Confirm the engine location and application notes for your vehicle, especially on Mazda 3 and Mazda 6 listings with engine-specific notes.
- Use the vehicle’s service procedure for coolant level management and sensor removal/installation.
Quality Assurance
Walker Products builds this coolant temperature sensor to OE specifications for resistance, thermal response, and signal output, supporting reliable operation with factory engine management systems.












