AULINK 2-Pack Oxygen Sensor Upstream/Downstream for Hyundai/Kia 2.0L-2.4L (2009-2016)

Overview

Upgrade your vehicle’s oxygen sensing with the AULINK 2-pack upstream and downstream sensors, designed for 2.0L to 2.4L Hyundai and Kia engines produced between 2009 and 2016. This pair supports a wide range of models, including Sonata, Santa Fe, Tucson, Forte5, Optima and more. While outcomes can vary by vehicle condition, many drivers notice smoother transitions between idle and drive, steadier engine response, and a more predictable feel as the sensors are refreshed with a high-quality component.

These sensors are crafted to deliver reliable air-to-fuel readings by admitting atmospheric oxygen to the sensing element while shielding the inner components from water and other contaminants. The design helps keep the lightweight filtering pathway clear, reducing the chance of clogging and maintaining consistent sensor behavior over time.

Key features and benefits

• OEM-part equivalence and broad cross-compatibility: includes 234-4238 and 234-5029 among other reference numbers to fit a variety of Hyundai and Kia models.
• Protective, durable build: a double laser-welded stainless steel body is fully submersible, resisting corrosion and withstanding engine conditions for longer service life.
• Efficient air sensing: the design allows atmospheric oxygen to enter the sensor while preventing water and other substances from seeping into the casing, helping keep the sensing path clear.
• Fitment reliability: engineered for easy installation with a secure connection to support steady electrical performance in compatible vehicles.
• Warranty and support: 1 year or 50,000 km warranty provides reassurance after installation.

Fitment and compatibility

The kit targets 2.0L and 2.4L engines across a broad slate of Hyundai and Kia models. Notable compatibility includes Hyundai Sonata (2009-2014 2.4L), Santa Fe (2010-2012 2.4L), Tucson (2011-2014 2.0L and 2010-2014 2.4L), and Kia Forte5 (2012-2013 2.0L/2.4L). It also covers Optima (2011-2015 2.4L), Optima Hybrid (2011-2013 2.4L), Rondo (2009-2012 2.4L), Sorento (2011-2015 2.4L), and Sportage (2011-2016 2.4L).

What to expect with daily use

Replacing worn sensors can contribute to a more predictable response across city and highway driving. You may observe steadier readings and a more consistent air–fuel balance as conditions change, provided installation is correct and vehicle health is good.

Warranty and support

Each kit includes a 1-year or 50,000 km warranty, with straightforward support for installation tips or troubleshooting guidance if needed.