ACURA 21359XRSG Knock Sensor

( Manufacturer Part Number: 21359XRSG ), ( Part Type: Sensor ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Ignition Knock ), ( Years: 2001 2002 2003 ), ( Application: Acura Cl Knock Sensor ), ( Cs-sku: 400 )

Review ACURA Genuine Knock Sensor fits CL 2001–2003

Acura CL Knock Sensor (21359-RSG-001) for Model Years 2001-2003

The Acura CL is a sophisticated vehicle known for its sleek design and powerful performance. To ensure optimal engine functionality, it is essential to maintain the health of its critical components. One such vital part is the knock sensor, which detects and alerts the engine control unit (ECU) to any abnormal engine knocking or pinging sounds caused by pre-detonation or detonation.

For Acura CL owners with model years ranging from 2001 to 2003, the original knock sensor (Part Number: 21359-RSG-001) may wear out or fail, leading to warning lights on the dashboard and a potential loss of power. Replacing this component with a genuine Acura OEM (Original Equipment Manufacturer) knock sensor is the recommended solution to restore your vehicle's performance and maintain its overall longevity.

The 21359-RSG-001 knock sensor is meticulously engineered and manufactured to meet the highest standards of quality and precision. This sensor is designed specifically for the Acura CL, ensuring a perfect fit and seamless integration with your vehicle's existing systems. The sensor uses advanced technology to detect even the slightest engine irregularities, allowing your engine to run at its best and most efficient.

1. Improved engine performance: A faulty knock sensor can lead to decreased power and reduced fuel efficiency. Replacing it with a genuine Acura part will help restore your engine to its optimal performance level.

2. Enhanced safety: A faulty knock sensor can potentially damage your engine if left unattended. By addressing the issue with a new sensor, you can help protect your investment in your Acura CL.

3. Better driving experience: A properly functioning knock sensor ensures a smoother and quieter engine operation, resulting in a more enjoyable driving experience.

4. Maintaining your vehicle's value: Regular maintenance, such as replacing worn-out sensors like the knock sensor, helps preserve your Acura CL's value for potential resale.

In conclusion, investing in a genuine Acura OEM knock sensor (Part Number: 21359-RSG-001) for your 2001-2003 Acura CL is a smart decision for maintaining the health and performance of your vehicle. By ensuring a proper fit, optimal functionality, and improved engine performance, you can enjoy a more enjoyable driving experience while preserving the value of your Acura CL.

The 21359XRSG knock sensor is a part that can be used for some 2001-2003 Acura CL models, specifically those with the 2.3L or 2.2L i-VTEC engine, to replace a faulty or failing original sensor. Here are some potential pros and cons of buying and installing this part.

1. Improved engine performance: A malfunctioning knock sensor can lead to a check engine light and reduced engine performance. Replacing the faulty sensor can help restore optimal engine performance.

2. Better fuel efficiency: A faulty knock sensor can cause the engine to run less efficiently, leading to increased fuel consumption. Replacing the sensor can help improve fuel economy.

3. Preventing further damage: A knock sensor that is not functioning correctly can allow engine knocking to continue, potentially causing further damage to other engine components. Replacing the sensor can help prevent more expensive repairs down the line.

4. Relatively easy installation: The knock sensor is typically a straightforward part to replace, and many mechanics and DIY enthusiasts can complete the installation in under an hour.

5. Cost-effective: The cost of a knock sensor replacement is usually much lower than the cost of more extensive engine repairs that may be required if the sensor is not replaced in a timely manner.

1. Potential for incorrect part: It's essential to ensure that the correct part number (21359XRSG) is being ordered for the specific model year and engine configuration of the Acura CL. Installing the incorrect part could result in further issues.

2. Slightly expensive: While the cost of a knock sensor replacement is relatively low compared to other engine repairs, it can still be an unexpected expense for some car owners.

3. Possibility of additional issues: If the knock sensor is failing, there may be other underlying issues with the engine that could require further diagnosis and repair.

4. DIY installation requires tools: While the installation itself is relatively simple, some tools may be required to complete the job, such as a socket wrench and a torque wrench.

In conclusion, replacing a faulty knock sensor with a part like the 21359XRSG can help restore optimal engine performance, improve fuel efficiency, and prevent further damage to other engine components. While there are some potential cons, such as the cost and the need for tools for DIY installation, the benefits generally outweigh the drawbacks. It's important to ensure that the correct part is being ordered and installed to avoid further issues.

If you're experiencing engine knocking or have a check engine light on your 2001-2003 Acura CL, it's recommended to have the knock sensor inspected and replaced if necessary as soon as possible to prevent further damage to the engine and potentially save on more extensive repair costs down the line. If you're comfortable doing the installation yourself, you can purchase the 21359XRSG part from a reputable auto parts supplier and follow the installation instructions provided. If you prefer to have a professional handle the installation, you can take your vehicle to a trusted mechanic for inspection and replacement.

Details:

Parts Geek - For 2001 - 2003 Acura CL Knock Sensor Genuine 21359XRSG 2002: Review Fitment Notes to Ensure Proper Fit condition: New Brand: Notes: Ignition Detonation 12 Month Warranty Vehicle.

part #: 21359xrsg prices

• $17.36-$25.72

specifications acrasensor:

• for models: Cl
• for makes: Acura
• for years: 2001-2003
• mpn: 21359xrsg
• part type: Sensor
• manufacturer warranty: 12 Month Warranty
• notes: Ignition Knock
• years: 2001 2002 2003
• application: Acura Cl Knock Sensor
• cs-sku: 400

shipping acrasensor:

• cost: $0.00
• transit: 3-7 Days
• type: Fixed
• carrier: FedEx
• service: FedEx Ground / FedEx Home Delivery
• class: Standard

seller acrasensor:

• rating: 98.8%
• city: Washington, District Of Columbia
• # reviews: 329644

offer acrasensor:

• sold: 0
• quantity: 1
• options: Ship-to-home
• availability: In Stock
• started: April 22, 2026

returns acrasensor:

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

general acrasensor:

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

payments acrasensor:

• other
• credit card: Diners-club
• wallet: Paypal

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