Best Coolant Temperature Sensors of 2025

Robert Reyes Avatar
Robert Reyes
Last Updated: Jan 15, 2025

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Coolant Temperature Sensors are an essential component in modern engine management systems. These sensors measure the temperature of the engine coolant and send signals to the engine control unit, which then adjusts the fuel injection and ignition timing accordingly. This helps to optimize engine performance, reduce emissions, and prevent overheating. Coolant Temperature Sensors are available in a variety of types and designs, including thermistors, thermocouples, and RTDs, to suit different engine applications. They are typically located near the engine thermostat or in the engine block, and are designed to withstand high temperatures and harsh operating conditions.

At a Glance: Our Top Picks

ACDelco Professional Coolant Temperature Sensor Cover #TOP 1
ACDelco Professional Coolant Temperature Sensor
ftb score rating icon 9.8
ACDelco GM Original Equipment 213-4333 Engine Coolant Temperature Sensor Cover #TOP 2
ACDelco GM Original Equipment 213-4333 Engine Coolant Temperature Sensor
ftb score rating icon 9.7
ACDelco 15-51107 Coolant Temperature Sensor Cover #TOP 3
ACDelco 15-51107 Coolant Temperature Sensor
ftb score rating icon 9.5

Top 10 Coolant Temperature Sensors

#TOP 1

ACDelco Professional Coolant Temperature Sensor

AC1213-4514
ACDelco Professional Coolant Temperature Sensor Cover
ACDelco Gold 213-4514 (19236568) Engine Coolant Temperature Sensor

The ACDelco Professional 213-4514 Engine Coolant Temperature Sensor is a premium aftermarket replacement, designed to meet expectations for fit, form, and function. As a professional-grade product, it delivers the reliable performance you expect from ACDelco. The connector gender is male, and it falls under the category of coolant temperature sensors.

What We Like
Easy to use
Durable over time
Speedy delivery
Perfect fit
Includes sealant
What We Don't Like
Need specific socket size
#TOP 2

ACDelco GM Original Equipment 213-4333 Engine Coolant Temperature Sensor

213-4333
Multi
ACDelco GM Original Equipment 213-4333 Engine Coolant Temperature Sensor Cover
ACDelco GM Original Equipment 213-4333 Engine Coolant Temperature Sensor

The ACDelco GM Original Equipment 213-4333 Engine Coolant Temperature Sensor is a high-quality, reliable, and durable replacement part for your GM vehicle's original factory component. It is manufactured to GM OE specification for fit, form, and function. This coolant temperature sensor is designed to accurately measure the temperature of your engine coolant, ensuring your vehicle's engine is operating at its optimal temperature. It is an essential component for maintaining your vehicle's performance and prolonging its lifespan.

What We Like
Great quality part
Easy to install
Cost-effective solution
Fits perfectly
Quick replacement time
What We Don't Like
Potential reliability concerns
#TOP 3

ACDelco 15-51107 Coolant Temperature Sensor

19189478
Black
ACDelco 15-51107 Coolant Temperature Sensor Cover
ACDelco Professional 15-51107 Engine Coolant Temperature Sensor

The ACDelco 15-51107 Coolant Temperature Sensor is a professional, premium aftermarket replacement that provides the performance and dependability you expect from ACDelco. This sensor is manufactured to meet expectations for fit, form, and function. With its precise and accurate readings, the ACDelco Coolant Temp Sensor ensures that your engine operates at the optimal temperature, preventing overheating and potential damage. This sensor is essential for monitoring the coolant temperature, allowing you to detect any issues early on and take necessary precautions. Its high-quality construction and compatibility with various vehicles make it a reliable choice for maintaining the performance of your engine.

What We Like
Easy installation
Accurate temperature readings
Fits perfectly
Eliminated check engine light
Durable performance
What We Don't Like
Possible quality concerns
Lacks thread locker
#TOP 4

OTUAYAUTO Coolant Temperature Sensor

15326388
OTUAYAUTO Coolant Temperature Sensor Cover
OTUAYAUTO Engine Water Coolant Temperature Sensor - Replacement for 1999-2018 Chevy Silverado 1500, 2000-2019 Tahoe, 06-14 Impala, 04-14 Malibu, 1999-2018 GMC Sierra 1500 00-19 Yukon, OEM# 2134514

The OTUAYAUTO Coolant Sensor is designed for various Chevy and GMC models, ensuring compatibility with vehicles from 1999 to 2018. This professional-grade replacement part meets OEM specifications, providing reliable performance. With its factory-tested design, you can trust its durability and functionality. This sensor addresses common issues like overheating, poor starting, and engine performance problems, improving your vehicle's overall efficiency. Plus, if you encounter any quality issues, the product comes with a refund or exchange service for added peace of mind.

What We Like
Good value
Good quality
Easy to install
Perfect fit
Effective performance
What We Don't Like
Slight leakage reported
#TOP 5

Beck/Arnley 158-0606 Coolant Sensor

158-0606
Black & Bronze
Beck/Arnley 158-0606 Coolant Sensor Cover
Beck/Arnley Coolant Temperature Sensor - 158-0606

The Beck/Arnley Coolant Sensor is designed to match the original equipment specifications, ensuring a perfect fit for your vehicle. It is built with precise tolerances that facilitate accurate communication with your engine's control unit (ECU), helping to maintain optimal engine performance. The sensor features corrosion-resistant terminals and coatings, which enhance durability and reliability in harsh engine conditions. Additionally, its robust construction allows it to endure the demanding environment under the hood, giving you peace of mind and contributing to your vehicle's longevity.

What We Like
Easy installation
Cost-effective alternative
Fixes coolant temperature issues
Compatible with multiple models
What We Don't Like
Potential quality concerns
Missing rubber o-ring
#TOP 6

A-Premium Coolant Temperature Sensor

9163946011
A-Premium Coolant Temperature Sensor Cover
A-Premium Coolant Temperature Sensor Compatible with Lexus ES350 ES300h Toyota 4Runner RAV4 Sequoia Sienna Tacoma Avalon Camry Corolla Highlander Land Cruiser Pontiac Vibe Scion tC xA

The A-Premium Coolant Sensor is designed to fit a wide range of Lexus and Toyota models, making it a versatile choice for your vehicle. With its precise compatibility, you can ensure optimal performance and avoid overheating issues. The sensor features a reliable bolt-on attachment method, which simplifies installation and guarantees a secure fit. Additionally, it comes with a one-year unlimited-mileage guarantee, providing you with peace of mind as you drive. With a durable design and effective temperature monitoring, this coolant sensor helps maintain your engine's efficiency and longevity.

What We Like
Effective for overheating issues
Good fit for various models
High-quality material
Easy installation
OEM replacement quality
What We Don't Like
Connector alignment issues
#TOP 7

Hyundai Water Temperature Sensor 39220-38030

39220-38030
Regular
Hyundai Water Temperature Sensor 39220-38030 Cover
Hyundai Genuine 39220-38030 Water Temperature Sensor Assembly

The Hyundai Temperature Sensor is designed for a perfect fit, ensuring easy installation in your vehicle. With a compact package size of 8.128 cm in length, 4.064 cm in width, and height, it’s lightweight at just 0.100 pounds, making handling simple. As an authentic OEM part, you can trust its quality and compatibility with your Hyundai. Choosing this sensor means you benefit from reliable performance, helping to accurately monitor your vehicle's coolant temperature for optimal engine function and longevity.

What We Like
Direct replacement part
Excellent OEM quality
Resolved engine temperature issues
Competitive pricing
Easy installation with proper tools
What We Don't Like
Involves some complex installation
#TOP 8

Walker Products Engine Coolant Temperature Sensor

211-2025
Walker Products Engine Coolant Temperature Sensor Cover
Walker Products 211-2025 Engine Coolant Temperature Sensor

Engineered with high quality components and materials, the Walker Products Engine Coolant Temperature Sensor ensures a proper fit and response. Tested for peak performance, this sensor guarantees worry-free operation. Designed to OE specifications in fit, form, and function, it provides accurate temperature readings for your engine. With its durable construction, it can withstand any condition, ensuring long-lasting performance. The Walker Coolant Temperature Sensor is a reliable choice for monitoring your engine's temperature and ensuring optimal performance.

What We Like
Worked and fit perfectly
Crows-foot tool helpful
Easy initial installation
Mid-priced option chosen
What We Don't Like
Failed within a month
Poor customer service response
#TOP 9

OSKYUO Coolant Temperature Sensor 5149077AB

5149077AB
Gold
OSKYUO Coolant Temperature Sensor 5149077AB Cover
OSKYUO Engine Coolant Temperature Sensor 5149077AB Compatible with Dodge Avenger Challenger Charger Dakota Durango Ram 1500 2500 3500 Jeep Cherokee Wrangler Grand Cherokee Chrysler 300 Town & Country

The OSKYUO Coolant Sensor is designed to fit a wide range of vehicles, ensuring compatibility with models from Dodge, Jeep, and Chrysler. This sensor monitors the engine coolant temperature, allowing the engine control module to adjust performance accordingly. Its durable metal construction guarantees long-lasting use and reliable performance. Installation is straightforward, making it easy for you to replace the old sensor without hassle. Additionally, the product comes with a 12-month warranty, offering peace of mind in case of any issues.

What We Like
Compatible with Dodge Durango
Easy installation
Effective for oil temp sensor code
Cost-effective
Good quality like OEM
What We Don't Like
Fit issues with specific vehicles
Potential miscommunication on compatibility
#TOP 10

Beck/Arnley Coolant Temperature Sensor 158-0629

158-0629
Beck/Arnley Coolant Temperature Sensor 158-0629 Cover
Beck/Arnley 158-0629 Engine Coolant Temperature Sensor

The Beck/Arnley Temp Sensor is designed to match the original equipment specifications, ensuring a perfect fit for your vehicle. It is built with high precision to provide accurate readings to your engine control unit, which helps in maintaining optimal engine performance. The sensor features corrosion-resistant terminals and coatings, enhancing its durability against harsh engine conditions. This means you can rely on it to deliver consistent performance over time, even in tough environments.

What We Like
Fits perfectly
Easy installation
Good quality for price
Includes necessary parts
What We Don't Like
Plastic clip feels cheap
Compatibility issues reported
Buying Guide Image

A Guide to Selecting the Best Coolant Temperature Sensors for Your Car

Introduction

Choosing the right coolant temperature sensor for your vehicle can be a daunting task. With so many different types and brands on the market, it can be difficult to know which one is the best fit for your needs. In this article, we will provide some helpful tips and advice on how to select the right coolant temperature sensor for your vehicle.

Types of Coolant Temperature Sensors

There are two main types of coolant temperature sensors: mechanical and electrical. Mechanical sensors use a bimetallic strip that expands and contracts as the coolant temperature changes, which activates a mechanical switch. Electrical sensors, on the other hand, use a thermistor that changes resistance as the temperature changes, which is then used to generate a voltage signal.

Mechanical sensors are typically less accurate and have a slower response time than electrical sensors, but they are also less expensive and easier to install. Electrical sensors, on the other hand, are more accurate and have a faster response time, but they are also more expensive and require a bit more expertise to install.

Choosing the Right Fit

When choosing a coolant temperature sensor, it is important to select one that is the right fit for your vehicle. This means that the sensor should be compatible with your vehicle's make and model, as well as its engine type. You can usually find this information in your vehicle's owner's manual or on the manufacturer's website.

Additionally, you should consider the type of sensor that is recommended for your vehicle. Some vehicles may require a specific type of sensor, such as a mechanical or electrical sensor, so it is important to check this before making a purchase.

Brand and Quality

Once you have determined the right fit for your vehicle, you should consider the brand and quality of the sensor. While there are many different brands on the market, some are known for their reliability and durability, while others may not be as trustworthy.

It is always a good idea to do some research and read reviews from other consumers before making a purchase. This can help you to determine which brands are reputable and offer high-quality sensors.

Price

Finally, you should consider the price of the coolant temperature sensor. While it can be tempting to choose the cheapest option, this may not always be the best decision. Cheap sensors may not be as reliable or durable as more expensive ones, and they may need to be replaced more frequently.

On the other hand, it is also important to avoid overpaying for a coolant temperature sensor. Look for sensors that offer good value for the price, and consider purchasing from a reputable seller that offers a warranty or return policy.

Conclusion

Choosing the right coolant temperature sensor for your vehicle is essential for ensuring the proper operation of your vehicle's cooling system. By considering the fit, brand and quality, and price of the sensor, you can make an informed decision and select a sensor that will meet your needs and provide reliable performance.

Frequently Asked Questions (FAQs)

1. What happens when your coolant temperature sensor goes bad?

When a coolant temperature sensor malfunctions, it can send incorrect signals to the engine control unit (ECU), causing it to believe that the engine is still cold. As a result, the ECU may adjust fuel injection, ignition timing, and other engine parameters, leading to overheating and potential engine damage.

2. Is it OK to drive with a bad coolant temp sensor?

No, it is not advisable to drive with a faulty coolant temperature sensor. A malfunctioning sensor can lead to overheating, which can cause severe damage to the engine and other components. It is recommended to have the sensor fixed immediately to prevent costly repairs.

3. How much does it cost to fix a coolant sensor?

The cost of replacing a coolant temperature sensor can vary depending on the vehicle's make and model. On average, it may cost between $200 and $400, including parts and labor. However, the exact cost can vary, ranging from $5 to $250 for the sensor itself and $100 to $150 for labor.

4. Will a coolant sensor throw a code?

Yes, a faulty engine coolant temperature (ECT) sensor can trigger the check engine light. If the ECU detects a problem with the coolant temperature sensor or its circuit, it will illuminate the check engine light as an indicator of a potential issue.

5. Do coolant temperature sensors prevent the engine from overheating?

Coolant temperature sensors play a crucial role in preventing engine overheating. If the sensor detects that the engine's temperature is too high, it will communicate with the ECU to adjust engine performance settings and prevent further overheating, which can cause severe damage to the engine.

Editor's Notes

During our coolant temperature sensor research, we found 24 coolant temperature sensor products and shortlisted 10 quality products. We collected and analyzed 35,697 customer reviews through our big data system to write the coolant temperature sensors list. We found that most customers choose coolant temperature sensors with an average price of $15.40.

The coolant temperature sensors are available for purchase. We have researched hundreds of brands and picked the top brands of coolant temperature sensors, including ACDelco, OTUAYAUTO, Beck/Arnley, A-Premium, HYUNDAI. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Robert Reyes Avatar

Robert Reyes is a dedicated writer from San Francisco with a bachelor of degree in mechanics and a bachelor of degree in marketing. He focuses on making some complicated topics simple and enjoys explaining complex and technical things in an easy-to-understand way.

Coolant Temperature Sensors Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand ACDelco ACDelco ACDelco OTUAYAUTO Beck/Arnley A-Premium HYUNDAI Walker Products OSKYUO Beck/Arnley
Style Modern Modern Modern Chevy Malibu Impala Modern Modern Modern Modern Modern Modern
Material Stainless Steel" or "Corrosion-Resistant Alloy - Metals or Ceramics Copper Stainless Steel, Brass - Brass Brass Brass Stainless Steel
Item dimensions L x W x H 3.6 x 2.2 x 1.7 inches 2.7 x 1.6 x 0.8 inches 2.5 x 1.7 x 1.7 inches - 2 x 2 x 3 inches - - 4 x 3 x 2 inches 2.36 x 0.79 x 0.79 inches 1.5 x 1.1 x 2.8 inches
Item Weight 0.02 Kilograms - - 0.03 Kilograms - 100 Grams - - 0.04 Kilograms 9.07 g
Mounting Type - Immersion Mount - - Flange Mount Flange Mount Flange Mount Plug Mount - -
FTB Score
ftb score rating icon 9.8
ftb score rating icon 9.7
ftb score rating icon 9.5
ftb score rating icon 9.4
ftb score rating icon 9.3
ftb score rating icon 9.2
ftb score rating icon 9.0
ftb score rating icon 8.9
ftb score rating icon 8.8
ftb score rating icon 8.6
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