What does an Air Fuel Ratio sensor do?

An Air Fuel Ratio (A/F) sensor measures the amount of oxygen in your vehicle's exhaust. This information is sent to the engine control unit (ECU) to help it adjust the fuel-air mixture for efficient combustion, better fuel economy, and lower emissions.

What are the signs of a failing A/F sensor?

Common signs of a failing A/F sensor include a decrease in fuel economy, rough idling, hesitation during acceleration, and the illumination of the check engine light. Your vehicle may also fail emissions tests.

Does this sensor come with installation hardware?

This NGK Air Fuel Ratio sensor is designed as a direct replacement and typically includes the necessary connector. However, it's always a good idea to refer to the manufacturer's installation instructions or consult a mechanic to confirm if any additional hardware or specialized tools are required for your specific vehicle.

NGK Air Fuel Ratio Sensor 24759

Name: NGK 2003-02 Lexus ES300 OE Type 4-Wire A/F Sensor
Brand: NGK
SKU: ngk-ngk-2003-02-lexus-es300-oe-type-4-wire-a-f-sensor-t14-818480
Price: 126.17 USD
Availability: BackOrder

NGK 2003-02 Lexus ES300 OE Type 4-Wire A/F Sensor

$126.17

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

NGK 4-wire Air Fuel Ratio Sensor. Helps your engine run efficiently by monitoring exhaust gases.

Key Features

Fits 2002-2014 Lexus, Subaru, and Toyota vehicles.
Features a durable platinum alloy electrode for stable performance.
Monitors oxygen levels in exhaust gases to optimize fuel-air mixture.
Helps improve fuel economy and reduce emissions.
Designed to meet original equipment specifications.
NGK is a popular brand for ignition and sensor components.

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Will this fit your vehicle?

Product Details

This NGK Air Fuel Ratio (A/F) sensor is built with a durable platinum alloy electrode, a material chosen for its resistance to high temperatures and its ability to maintain a stable electrical signal. It's a direct replacement for the original sensor on a wide range of Lexus, Subaru, and Toyota vehicles, including models like the 2002-2003 Lexus ES300, 2008-2014 Subaru Legacy, and 2004-2007 Toyota Highlander. This sensor plays a crucial role in your engine's performance by measuring the amount of oxygen in your exhaust gases. This data is then sent to your vehicle's computer, which uses it to adjust the fuel-air mixture for optimal combustion.

A properly functioning A/F sensor is key to ensuring your engine runs smoothly, efficiently, and with lower emissions. When this sensor starts to wear out, you might notice decreased fuel economy, rough idling, or even a check engine light. NGK is a well-known name in ignition and sensor technology, and this OE-type sensor is designed to meet the original equipment specifications for your vehicle. It's a solid option if you're looking to restore your engine's performance and emissions control to factory levels.