What does an oxygen sensor do for my vehicle?

An oxygen sensor monitors the amount of oxygen in your exhaust gases. It sends this data to your vehicle's computer (ECU) to help maintain the optimal air-fuel ratio for better engine performance, improved fuel economy, and reduced emissions.

How does the ceramic element protect the sensor?

The advanced ceramic sensor element is protected by a special coating. This coating acts as a barrier against contaminants and deposits that can build up in the exhaust, helping to prevent the sensor from failing prematurely.

Does this sensor come with everything needed for installation?

This product is the direct-fit oxygen sensor itself. It is recommended to consult your vehicle's service manual or a professional mechanic for specific installation procedures and any additional hardware or tools that may be required.

NGK Oxygen Sensor 21546 - Direct Fit

Name: NGK Cadillac Escalade 2005-2003 Direct Fit Oxygen Sensor
Brand: NGK
Price: 65.10 USD
Availability: InStock

NGK Cadillac Escalade 2005-2003 Direct Fit Oxygen Sensor

$65.10

Only 7 left in stock

NGK Oxygen Sensor 21546. Advanced ceramic element resists contaminants for reliable performance.

Key Features

This product is an NGK Oxygen Sensor, part number 21546.
It features an advanced ceramic sensor element with a 3-stage contaminant-resistant plasma jet and deposit trap overcoat.
This design protects the element against poisoning from contaminants.
NGK is a major supplier of OEM oxygen sensors.
Oxygen sensors are vital for optimal engine performance, fuel efficiency, and emissions control.
This sensor provides closed-loop feedback to the ECU to control the air-fuel ratio.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

What you get here is a direct-fit oxygen sensor from NGK, a company that knows its way around sensors. This part is crucial for your vehicle's onboard diagnostic system, helping to keep the engine running smoothly, maximize your fuel efficiency, and reduce harmful emissions. It constantly sends information back to the engine control unit (ECU) to manage the air-fuel mixture and alert you to potential issues with fuel delivery or the catalytic converter.

NGK uses advanced technology in their ceramic sensor elements, protecting them with a special coating that resists contaminants and deposits. This helps prevent the sensor from failing prematurely, ensuring it can do its job effectively for a long time. Because NTK is a core ceramics company, they have control over the entire manufacturing process, from the raw materials to the finished product, which is how they achieve this level of protection and reliability.

This sensor is designed to fit a wide range of vehicles, including models like the Chevrolet Silverado 1500, Cadillac Escalade, and GMC Yukon. It's a solid option if you're looking to replace a faulty oxygen sensor and get your vehicle back to running efficiently.