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  3. AUTOPART PREMIUM 21MC39C

AUTOPART PREMIUM 21MC39C Knock Sensor

fits model: Tl. make: Acura. year: 1999–2008.

21mc39c Autopart Premium Knock Sensor Fits 1999-2008 Acura Tl

( Brand: Autopart Premium ), ( Manufacturer Part Number: 21MC39C ), ( Part Type: Sensor ), ( Part Details: Ignition Knock ), ( Fit Years: 2005 2008 2003 2007 1999 2000 2001 2002 2004 2006 ), ( Cs-sku: 400 )

Review AUTOPART PREMIUM Knock Sensor Acura fits TL 1999–2008

Acura TL 1999-2008 Knock Sensor (Part Number: 21MC39C)

The 21MC39C knock sensor, manufactured by an OEM-approved supplier, is a crucial component designed to ensure optimal engine performance and durability in Acura TL vehicles manufactured between 1999 and 2008. This sensor plays a vital role in monitoring engine operation and alerting the powertrain control module (PCM) to any potential engine knocking or pinging.

The knock sensor is a compact, cylindrical component with a diameter of approximately 1.5 inches and a length of around 3 inches. It is designed with a robust construction, featuring a high-strength housing and a precision-engineered sensor element to ensure accurate and reliable operation under various driving conditions.

The sensor utilizes advanced piezoelectric technology to convert mechanical vibrations, such as engine knocking, into electrical signals. These signals are then transmitted to the powertrain control module (PCM), which analyzes them to determine if any corrective action is required. By continuously monitoring engine operation, the knock sensor helps maintain engine efficiency, reduce emissions, and prolong engine life.

Installation of the 21MC39C knock sensor is a straightforward process, typically requiring only basic hand tools. The sensor is located near the engine, usually in the crankshaft or camshaft area, and is secured in place with a few bolts or clips. Before installation, it is recommended to refer to the vehicle's service manual for specific instructions and precautions.

When it comes to maintaining the health of your Acura TL, a properly functioning knock sensor is essential for maintaining optimal engine performance and avoiding costly repairs. By replacing a faulty or worn-out sensor with a genuine OEM part like the 21MC39C, you can ensure your vehicle continues to run smoothly and efficiently.

In summary, the 21MC39C knock sensor is an essential component for maintaining the performance and longevity of your Acura TL's engine. Its compact design, robust construction, and advanced piezoelectric technology make it an indispensable tool in monitoring engine operation and alerting the PCM to any potential issues. With easy installation and reliable performance, the 21MC39C knock sensor is an excellent investment for any Acura TL owner.

The 21MC39C knock sensor, produced by Bosch, is a common replacement part for various models of Acura TL vehicles manufactured between 1999 and 2008. This component is essential for maintaining proper engine performance by detecting irregular engine combustion and signaling the engine control module (ECM) to take corrective actions. Let's discuss the pros and cons of purchasing this knock sensor for your Acura TL.

Pros:

1. Improved Engine Performance: A faulty knock sensor can cause engine misfires and rough idling. Replacing it with a new 21MC39C sensor can help restore smooth and efficient engine operation.

2. Prevents Engine Damage: A malfunctioning knock sensor can lead to severe engine damage due to improper fuel injection and ignition timing. Installing a new sensor can prevent potential engine issues and save costly repairs in the future.

3. Enhanced Driveability: A new knock sensor can improve overall driving experience by reducing engine vibrations, improving engine idle stability, and increasing responsiveness.

4. Diagnostic Capability: A new knock sensor can help diagnose other engine problems by detecting minor issues before they become major problems.

Cons:

1. Cost: The 21MC39C knock sensor is not an inexpensive part, with prices ranging from $80 to $150 depending on the supplier and availability.

2. Installation Complexity: Installing the knock sensor requires removing various engine components, including the intake manifold and various electrical connectors. This process can be time-consuming and might require professional assistance.

3. Potential for False Positives: A new knock sensor can sometimes generate false positives, indicating engine knocking when no issues are present. In some cases, this can result in unnecessary engine adjustments or repairs.

Conclusion:

The 21MC39C knock sensor is an essential component for maintaining optimal engine performance and preventing potential damage in Acura TL vehicles. Although it comes with a higher cost and installation complexity, the benefits of improved engine performance, enhanced driveability, and diagnostic capabilities make it a worthwhile investment. If you experience engine knocking or other related symptoms, consider replacing your knock sensor with a new 21MC39C sensor from a reputable supplier.

Recommendation:

When purchasing a new 21MC39C knock sensor, choose a reliable supplier with a good reputation and warranty coverage. Also, consider having the sensor installed by a professional mechanic to ensure proper installation and avoid potential complications. This investment can save you from costly engine repairs and restore your vehicle's smooth and efficient operation.

Details:

1999 - 2008 Acura TL Base 3.2L V6. 2002 - 2003 Acura TL Type-S 3.2L V6. 2007 - 2008 Acura TL Type-S 3.5L V6. Type: Knock / Detonation Sensor.

Notes: Ignition Knock Detonation Sensor.

part #: 21mc39c price

  • $20.83

specifications acrasensor:

  • for models: Tl
  • for makes: Acura
  • for years: 1999-2008
  • brand: Autopart Premium
  • mpn: 21mc39c
  • part type: Sensor
  • part details: Ignition Knock
  • fit years: 2005 2008 2003 2007 1999 2000 2001 2002 2004 2006
  • cs-sku: 400

general acrasensor:

  • Car Truck Parts Accessories > Air Fuel Delivery > Air Intake Fuel Sensors
  • condition: New

shipping acrasensor:

  • cost: $0.00
  • class: Standard
  • carrier: FedEx
  • type: Fixed
  • transit: 3-8 Days
  • service: FedEx Ground or FedEx Home Delivery

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offer acrasensor:

  • availability: In Stock
  • options: Ship-to-home
  • started: May 20, 2025
  • sold: 0
  • quantity: 1

returns acrasensor:

  • paid by: Buyer
  • time: 30 Days
  • policy: Returns Accepted

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  • city: Moonachie, New Jersey
  • # reviews: 60047
  • rating: 96.1%
for models: tl, for makes: acura, for years: 1999-2008, part type: sensor, part details: ignition knock, fit years: 2005 2008 2003 2007 1999 2000 2001 2002 2004 2006, cs-sku: 400,
category: auto parts > car truck parts accessories > air fuel delivery > acura air intake fuel sensors, sku: 4718521693262673,
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1 offer $20.83 USD
  • New. Offer #1 priced at $20.83 + $0.00 shipping estimate = $20.83* total. Type: Knock / Detonation Sensor 2007-2008 Acura TL Type-S 3.5L V6.FREE SHIPPING

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