Best Car Engine Detonation Sensors of 2025

Joseph Prokop Avatar
Joseph Prokop
Last Updated: 11 Feb 2025

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Car engine detonation sensors are electronic devices that are designed to detect and monitor the occurrence of engine knock or detonation. This is a crucial function as it helps to prevent engine damage and improve fuel efficiency. These sensors are typically installed in the engine block and are connected to the car's onboard computer system. They work by detecting the high-frequency vibrations that occur when the engine is knocking and then sending a signal to the computer to adjust the engine's timing or fuel mixture to prevent further knocking. Car engine detonation sensors are a recommended addition to any vehicle as they help to prolong the lifespan of the engine and improve the overall performance of the car.

At a Glance: Our Top Picks

Bosch 0261231197 Car Engine Knock Sensor Cover #TOP 1
Bosch 0261231197 Car Engine Knock Sensor
ftb score rating icon 9.8
Bosch 0261231188 Car Engine Knock Sensor Cover #TOP 2
Bosch 0261231188 Car Engine Knock Sensor
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Bosch 0261231146 Engine Knock Sensor Cover #TOP 3
Bosch 0261231146 Engine Knock Sensor
ftb score rating icon 9.5

Top 10 Car Engine Detonation Sensors

#TOP 1

Bosch 0261231197 Car Engine Knock Sensor

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Bosch 0261231197 Car Engine Knock Sensor Cover
Bosch 0261231197 Knock Sensor

The Bosch Knock Sensor is designed to enhance your vehicle’s engine performance by monitoring detonation. This vital component helps ensure that your engine runs smoothly, reducing the risk of damage. With its reliable build, you can trust that it will provide accurate readings, allowing you to detect potential issues early. The Bosch Knock Sensor also contributes to better fuel efficiency, ensuring that your car operates at its best. This means you can enjoy a more responsive driving experience while saving on fuel costs.

What We Like
Enhances engine performance
Reduces risk of damage
Accurate readings
Improves fuel efficiency
Responsive driving experience
#TOP 2

Bosch 0261231188 Car Engine Knock Sensor

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Bosch 0261231188 Car Engine Knock Sensor Cover
Bosch 0261231188 Knock Sensor

The Bosch Knock Sensor is designed for optimal performance in your vehicle. It effectively detects engine detonation, helping you maintain a smoother running engine. By using this sensor, you can prevent potential engine damage, ensuring that your car remains reliable. Additionally, it is an OEM equivalent part, providing peace of mind that it meets high-quality standards. This means you can enjoy the convenience of a dependable product that keeps your engine running efficiently.

What We Like
High-quality brand
Prevents engine damage
OEM equivalent part
Enhances engine performance
#TOP 3

Bosch 0261231146 Engine Knock Sensor

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Bosch 0261231146 Engine Knock Sensor Cover
Bosch 0261231146 Knock Sensor

The Bosch Knock Sensor is an essential component for maintaining optimal engine performance. It detects detonation in the engine, allowing you to identify potential issues early on. By using this sensor, you can help prevent engine damage, ensuring your vehicle runs smoothly. The Bosch brand is known for its reliability, providing you with peace of mind. This sensor is specifically designed for car engine applications, making it a perfect fit for your needs.

What We Like
Reliable brand performance
Prevents engine damage
Easy to install
Enhances engine efficiency
Detects issues early
#TOP 4

Bosch 0261231038 Car Engine Knock Sensor

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Black
Bosch 0261231038 Car Engine Knock Sensor Cover
Bosch 0261231038 Knock Sensor, Black

The Bosch Knock Sensor is an essential component for your vehicle's engine performance. This sensor detects engine detonation, allowing you to prevent potential damage and maintain optimal performance. By using this sensor, you can ensure your engine runs smoothly, improving fuel efficiency and reducing emissions. Its compatibility with various oxygen sensors further enhances its functionality, making it a convenient choice for car maintenance. Overall, investing in the Bosch Knock Sensor will help you safeguard your engine and boost its longevity.

What We Like
Enhances engine performance
Prevents potential engine damage
Improves fuel efficiency
Reduces emissions
Compatible with oxygen sensors
#TOP 5

VALEO 890000 Ultrasonic Car Sensors

890000
VALEO 890000 Ultrasonic Car Sensors Cover
VALEO 890000 Car and Vehicle Electronics

The VALEO 890000 Sensors are designed for efficient vehicle monitoring. Their paintable chemical properties allow you to customise them to match your car's aesthetics. With a diameter of 15.48 mm, they can fit seamlessly into various locations, both front and rear. Featuring three connectors, installation is straightforward, ensuring you spend less time setting them up. The ultrasonic sensor type enhances detection capabilities, providing you with greater awareness of your surroundings and improving overall driving safety.

What We Like
Customisable appearance
Easy installation
Enhanced detection
Versatile fitting positions
#TOP 6

Bosch 0261231173 Engine Knock Sensor

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Bosch 0261231173 Engine Knock Sensor Cover
Bosch 0261231173 Knock Sensor

The Bosch Knock Sensor is an essential component for your vehicle's engine management system. By detecting engine detonation, it helps in adjusting the engine timing for optimal performance. This means you can enjoy smoother driving and potentially better fuel economy. Additionally, the sensor is designed by Bosch, a trusted brand in automotive parts, ensuring reliability and quality. With the Bosch Knock Sensor, you can drive with confidence, knowing your engine is protected from harmful knocking sounds that can lead to serious damage.

What We Like
Reliable brand
Improves engine performance
Enhances fuel economy
Protects against engine damage
#TOP 7

Dromedary Knock Sensor for Various Models

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Dromedary Knock Sensor for Various Models Cover
Dromedary 0261231036 Knock Sensor A4 A6 A8 Ibiza II Toledo I Golf II III IV Passat Polo

The Dromedary Knock Sensor is designed to enhance your vehicle's performance by accurately detecting engine detonation. This essential component helps prevent engine damage by ensuring optimal combustion. With its durable construction, you can trust it to withstand the rigours of everyday driving. Additionally, its compatibility with various models, including the A4, A6, and Golf, makes it a versatile choice for many drivers. You will appreciate how this sensor contributes to a smoother and more efficient driving experience.

What We Like
Enhances engine performance
Prevents engine damage
Durable construction
Compatible with multiple models
#TOP 8

X AUTOHAUX Car Ignition Knock Sensor for Nissan

22060-4M500, 22060-4M50A
Black
X AUTOHAUX Car Ignition Knock Sensor for Nissan Cover
X AUTOHAUX Car Ignition Knock Detonation Sensor 22060-4M500 for Nissan Frontier

The X AUTOHAUX Knock Sensor is designed for specific Nissan models, including the Frontier, Sentra, and Xterra. It features durable materials that withstand high temperatures, vibrations, and corrosion, ensuring a long lifespan. This sensor effectively detects the speed and position of the rotating shaft, allowing you to adjust the ignition advance angle for improved performance. Installation is straightforward, fitting seamlessly according to original factory specifications, making it convenient for users looking to enhance their vehicle's engine efficiency.

What We Like
Durable high-temperature materials
Improves engine performance
Sensitive and quick response
Easy installation
#TOP 9

Car Auto Knock Sensor for BK Models

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Car Auto Knock Sensor for BK Models Cover
Car Auto Knock Sensor Fit for BK 1.4 1.6 2.0 2.3 03-09 ZJ01-18-921 Knock Sensor

The EVGATSAUTO Knock Sensor is designed specifically for BK models 1.4, 1.6, 2.0, and 2.3 from 2003 to 2009. It ensures a perfect fit, making installation straightforward and hassle-free. This sensor is manufactured with high-quality hose material, contributing to its lightweight design while ensuring durability. Additionally, it serves as a reliable replacement for the original part, referenced as ZJ01-18-921, helping to maintain your vehicle’s engine performance.

What We Like
Perfect fit for specific models
Easy installation process
Durable lightweight material
Reliable OEM replacement
#TOP 10

Anxingo K20 K24 Knock Sensor Connector Pigtail

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Anxingo K20 K24 Knock Sensor Connector Pigtail Cover
Anxingo K20 K24 Knock Sensor Switch Connector Plug Pigtail Wire Harness Replacement for Honda Civic Accord Element with 7 Inches of Wire

The Anxingo K20 K24 Connector is a vital plug pigtail designed for the K20 and K24 knock sensors. With 7 inches of durable wire, it provides ample length for easy installation and flexibility in your car's engine bay. Made from high-quality materials, this connector ensures longevity and reliability, making it ideal for those needing a robust replacement. It comes well-packaged, offering peace of mind that your product will arrive in excellent condition, ready for use.

What We Like
Durable material
7 inches of wire
Easy installation
Well-packaged
Ideal for Honda models
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the detonation sensor?

The engine's knock sensor (or sensors) detects preignition and detonation, potentially damaging forms of abnormal combustion. Though full-blown knocking and pinging are audible to the human ear, the knock sensor detects imperceptible levels.

2. What happens if a knock sensor goes bad?

A bad knock sensor may also not let the engine accelerate properly while driving on the highway, and cause the vehicle to lose fuel mileage. If you notice these things happening, you should have a certified mechanic from YourMechanic inspect why the car is slow to accelerate.

3. How many knock sensors does a car have?

Typically, each bank of the engine will have one knock sensor (one on inline 4/5/6 cylinder engines, two on V6, V8, V10 engines).

4. Can a bad knock sensor cause detonation?

If the knock sensor malfunctions, detonation is not properly regulated and major engine damage can occur. Recognizing the symptoms of a bad knock sensor and replacing it, may help you avoid costly repairs.

Editor's Notes

During our car engine detonation sensor research, we found 306 car engine detonation sensor products and shortlisted 10 quality products. We collected and analyzed 5,568 customer reviews through our big data system to write the car engine detonation sensors list. We found that most customers choose car engine detonation sensors with an average price of £16.77.

The car engine detonation sensors are available for purchase. We have researched hundreds of brands and picked the top brands of car engine detonation sensors, including Bosch Automotive, Bosch, Valeo, DROMEDARY, X AUTOHAUX.

Written by
Joseph Prokop Avatar

Joseph is a seasoned writer who's also passionate about automotive. His passion for automotive care and maintenance fuels his drive for more knowledge in the field. He currently resides in Middlesbrough, where he finds time to write informative contents on automotive. His automotive related articles are quite popular in journals around the world. Joseph continues to use his wealth of experience in the industry to create helpful guides on automotive.