Welcome Offer : Use Code WELCOME5 for 5% OFF!
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Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping Across USA
- No EU import duties. - Ships within 3-5 business days. (USA) - Ships with 8-12 business days. (International)
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Each NTK sensor is designed specifically for an OEM application, down to the wire length, protective sleeve material, grommets, clips and protection tube design. NTK is continuously developing sensor technologies to work with new advanced vehicle computer components.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What are the dimensions of the NGK 21539 Oxygen Sensor?A: The NGK 21539 Oxygen Sensor measures sixteen point twenty-six inches in length, one inch in width, and one inch in height.
Q: What is the model number of this oxygen sensor?A: The model number of this oxygen sensor is two one five three nine.
Q: What is the part number for this sensor?A: The part number for this sensor is two one five three nine.
Q: What features does the NGK 21539 Oxygen Sensor offer?A: The sensor is designed specifically for OEM applications, optimizes emissions and fuel economy, and is extensively tested for quality.
Q: Is the NGK 21539 Oxygen Sensor suitable for all vehicles?A: No, it is specifically designed for OEM applications. Refer to Amazon confirmed fit to verify compatibility with your vehicle.
Q: How do I install the NGK 21539 Oxygen Sensor?A: Installation is straightforward as the sensor comes with a factory-fitted OE connector for easy plug-and-play installation.
Q: Is the NGK 21539 Oxygen Sensor compatible with both upstream and downstream applications?A: Yes, this sensor can be used for both upstream and downstream applications, depending on your vehicle's configuration.
Q: Do I need any additional tools to install the NGK 21539 Oxygen Sensor?A: Basic hand tools are typically required for installation, but no special tools are necessary.
Q: How should I store the NGK 21539 Oxygen Sensor?A: Store the sensor in a cool, dry place, away from moisture and extreme temperatures to maintain its integrity.
Q: What safety precautions should I take when installing this sensor?A: Always disconnect the vehicle battery before installation to avoid electrical shorts or damage.
Q: What is the warranty on the NGK 21539 Oxygen Sensor?A: The warranty details may vary; refer to the manufacturer's guidelines for specific warranty information.
Q: What if the NGK 21539 Oxygen Sensor arrives damaged?A: If the sensor arrives damaged, you should contact the seller for a return or exchange under their return policy.
Q: Can I use this oxygen sensor in high-performance applications?A: Yes, the NGK 21539 is designed to work effectively in various performance applications, ensuring optimal emissions control.
Q: Is the NGK 21539 Oxygen Sensor easy to replace?A: Yes, it is designed for easy replacement, especially with the OE connector that simplifies the installation process.
Q: How often should I replace my oxygen sensor?A: It is generally recommended to replace oxygen sensors every sixty thousand to one hundred thousand miles, depending on vehicle use.
Q: Will the NGK 21539 Oxygen Sensor improve my vehicle's fuel economy?A: Yes, optimizing emissions and fuel economy is one of the key features of the NGK 21539 Oxygen Sensor.
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