AZHZ Oxygen Sensor 234-5714 for Hyundai Santa Fe 2.4L (2019–2020) — Heated 5‑Wire Direct Fit

AZHZ 234-5714 is a direct-fit heated oxygen (O2) sensor engineered to replace faulty upstream or downstream sensors on compatible 2016–2020 Hyundai and Kia 2.4L/2.0L engines.

If your vehicle is showing check-engine lights, reduced fuel economy, or uneven idling and it matches the listed fitments, this AZHZ oxygen sensor is built to restore accurate air-fuel feedback to the engine control unit. The unit installs in the factory threaded port and includes a built-in heater to help the sensor reach operating temperature faster. Before ordering, compare the connector and plug style to your existing sensor—plug compatibility is essential for a correct fit.

Which cars and engine positions does this AZHZ sensor fit?

This sensor is compatible with a range of Hyundai and Kia models across several years and engine sizes. It fits both upstream (front/upper) and downstream (rear/post-cat) positions depending on the original equipment layout listed below. Use the exact plug photo to confirm fitment.

• Hyundai Santa Fe 2.4L (2019–2020 AWD)
• Hyundai Santa Fe Sport 2.0L/2.4L (2017–2018)
• Hyundai Tucson 1.6L (2017–2018) and 2.4L (2019 AWD)
• Kia Sorento 2.4L (2016–2019 AWD), Kia Sportage 2.4L (2017–2019)

How is AZHZ’s 234-5714 sensor built and wired?

The AZHZ O2 sensor is a heated, threaded design with a five-wire harness and male connector for OEM-style connections. It uses high-temperature welding and improved sealing to resist exhaust exposure while the internal heater element shortens warm-up time for faster, accurate oxygen readings.

• Sensor type: Heated oxygen sensor with durable sealing
• Connector gender: Male; wire quantity: 5 wires
• Wire harness lengths: approximately 25.2 in and 20.87 in options
• Mounting style: threaded for direct replacement

Will AZHZ 234-5714 replace my OE part numbers?

Yes — this aftermarket sensor is intended to substitute common OE references for compatible vehicles. It’s supplied as a direct aftermarket replacement for certain part numbers, but you should still verify compatibility visually and by part number before installation.

• Common replaceable OE numbers related to this unit include 234-9124 and 234-4350
• Confirm by comparing your old sensor’s plug, thread size, and wire count
• If the plug does not match exactly, it will not fit and should not be forced

Who is this product for?

This AZHZ 234-5714 oxygen sensor is aimed at DIY mechanics, independent repair shops, and vehicle owners who need an affordable direct-fit replacement for a failing upstream or downstream O2 sensor in supported Hyundai and Kia models. It’s best for technicians who can inspect connector type and thread locations, and for anyone who wants a heated sensor that reaches operating temperature faster to help the engine manage fuel trims and emissions more effectively. Note: brand names are used only for compatibility and do not indicate original manufacturer endorsement.