39250-2M500 HYUNDAI Knock Sensor

Review HYUNDAI Genuine Knock Sensor

The Hyundai 39250-2M500 Knock Sensor is an essential component of your vehicle's engine management system. Designed specifically for Hyundai vehicles, this knock sensor is engineered to detect unusual engine sounds, such as knocking or pinging, caused by detonation or pre-ignition.

This sensor is a key player in maintaining the optimal performance of your engine. By continuously monitoring engine sound waves, it sends essential data to the engine control unit (ECU). The ECU then adjusts the engine timing and fuel delivery to prevent further knocking or pinging and ensure a smooth and efficient combustion process.

The Hyundai 39250-2M500 Knock Sensor is built to last with high-quality materials and precise engineering. Its compact, cylindrical design allows for easy installation in various engine configurations. The sensor is equipped with a built-in temperature sensor, which enables the ECU to compensate for temperature changes and maintain accurate engine performance readings.

This knock sensor features a robust, five-wire connection for reliable data transmission between the sensor and the ECU. The wires are shielded for protection against electrical interference, ensuring accurate and consistent engine performance data.

The Hyundai 39250-2M500 Knock Sensor is an OEM (Original Equipment Manufacturer) part, meaning it is the same sensor that came installed on your Hyundai vehicle when it was new. By using a genuine OEM part, you can trust that it will meet the exacting standards of your vehicle's manufacturer and provide the best possible performance and longevity.

When it comes to maintaining the health and longevity of your Hyundai engine, the 39250-2M500 Knock Sensor plays a crucial role. This sensor not only helps prevent engine damage by detecting and addressing potential issues but also ensures optimal engine performance for a smoother, more enjoyable driving experience.

Buying a Hyundai replacement knock sensor, part number 39250-2M500, comes with its own set of advantages and disadvantages. Here's a detailed analysis:

1. Improved Engine Performance: A faulty knock sensor can lead to poor engine performance, including rough idling, misfiring, and even engine damage. Replacing the knock sensor can help restore optimal engine performance.

2. Prevents Engine Damage: A knock sensor alerts the engine control module (ECM) to any engine knocking or pinging caused by detonation. This early warning system allows the ECM to adjust fuel injection and ignition timing to prevent further engine damage.

3. Cost-Effective: The cost of a Hyundai knock sensor replacement is relatively low compared to other automotive repairs or parts. In many cases, this is a DIY (Do-It-Yourself) project, making it an affordable option for car owners.

1. Potential for False Positives: Sometimes, a knock sensor can generate false positives, triggering the check engine light even when there's no actual engine knocking. This can lead to unnecessary repairs and added costs.

2. Labor Costs: If you're not comfortable performing the repair yourself, you'll need to pay for professional labor costs. The hours required for this repair will depend on the mechanic's hourly rate and the complexity of the job.

3. Additional Parts: In some cases, the knock sensor may not be the only faulty component. Other related parts, such as the crankshaft position sensor or camshaft position sensor, may also need replacement. This can add to the overall cost of the repair.

A faulty knock sensor can lead to poor engine performance and potential engine damage. Replacing the knock sensor can help restore optimal engine performance and prevent further damage. However, there are some disadvantages to consider, such as the potential for false positives and additional labor and parts costs. Ultimately, the decision to replace the knock sensor depends on the car owner's budget, technical skills, and willingness to take on the project.

If you're experiencing engine knocking or pinging, it's recommended to have the knock sensor inspected and replaced as soon as possible. If you're comfortable performing the repair yourself, the replacement process is relatively straightforward and affordable. However, if you're not confident in your abilities, it's recommended to seek professional help to ensure the job is done correctly and efficiently. Regardless of your decision, addressing the issue promptly can help prevent more extensive and costly engine damage.

Details:

Electrical parts are not returnable. Shipping carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. You'll only get the horns if you honk in your Hyundai. Parts must be resalable and in the original packaging.

specifications ignitioncomp:

• brand: Hyundai
• mpn: 39250-2m500
• part type: Sensor
• year: 2021 2022 2023 2024
• parts included: Only Part Reference 10 On The Diagram Is Included
• manufacturer warranty: 1 Year
• genuine oem: Yes
• universal fitment: Direct Replacement

seller ignitioncomp:

• rating: 99.7%
• # reviews: 340
• city: reading, pennsylvania

offer ignitioncomp:

• availability: in stock
• in stock #: 5
• options: ship-to-home
• started: may 26, 2026
• sold #: 11
• prices: $23.69–$45.14
• item condition:
  • New
  • Used

payments ignitioncomp:

• wallet: apple-pay
• credit card: discover
• other

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components

returns ignitioncomp:

• policy: returns accepted
• time: 30 days
• paid by: seller

shipping ignitioncomp:

• transit: 3-7 days
• class: standard, one-day
• service: standard, overnight
• type: fixed