ATBIZZLE Air Fuel Ratio & Oxygen Sensor 2-Pack Upstream/Downstream Fit for 2012-2017 1.6L

ATBIZZLE supplies a matched pair of upstream air–fuel ratio and downstream O2 sensors engineered to restore accurate exhaust oxygen readings for compatible 1.6L Kia and Hyundai engines.

These two replacement sensors (upstream air–fuel ratio and downstream oxygen sensor) are built with ceramic sensing elements and precious-metal electrodes to detect exhaust oxygen quickly and reliably. The stainless steel housings resist high temperatures and corrosion, and pre-applied anti-seize on the threads makes installation straightforward. They are offered as a set of two to address both positions and help return proper feedback to your engine control system.

Which vehicles and engine layouts do these sensors fit?

These sensors are specified for naturally aspirated 1.6L four-cylinder engines from certain Kia and Hyundai models between 2012 and 2017. Compatibility depends on year, model, engine code and the sensor’s connector/wire length, so always confirm the exact part you need before ordering.

• Hyundai Accent L4 1.6L (2012–2017)
• Hyundai Veloster L4 1.6L (2012–2015)
• Kia Rio L4 1.6L (2012–2016)
• Kia Soul L4 1.6L (2012–2016)

How do these sensors improve engine performance or diagnostics?

By supplying accurate oxygen concentration readings from both upstream and downstream positions, these sensors help the engine control unit adjust fuel delivery and evaluate catalytic converter efficiency. Replacing failing sensors can stop rough idling, reduce poor fuel economy, and clear oxygen-sensor-related fault codes in many cases.

• Upstream sensor provides real-time air–fuel ratio feedback.
• Downstream sensor monitors converter performance and emissions.
• Fast response ceramic element for timely ECU corrections.
• Helps resolve OBD-II P013x/P015x or related codes when sensor-rooted.

What are the key technical and installation details to know?

The sensors use durable 310S stainless steel housings and ceramic sensing elements with precious-metal coatings for sensitivity. Threads include factory-applied anti-seize for easier removal later, but verify connector type and wire length against your vehicle’s original sensor to ensure a plug-and-play fit.

• High-temperature 310S stainless steel housing for corrosion resistance.
• Precious-metal-coated electrodes and ceramic sensing core.
• Pre-applied anti-seize on the threads for straightforward installation.
• Check part numbers and connector wiring match the factory sensor before purchase.

What does the warranty and part replacement coverage include?

ATBIZZLE backs these sensors with an 18-month unlimited mileage guarantee, offering assistance for compatibility checks and support if you encounter issues. If a product proves defective or doesn’t match your application, contact the seller for help with verification or return options.

• 18-month unlimited mileage limited warranty.
• Customer support available for fitment questions and troubleshooting.
• Replaces multiple OEM numbers listed for cross-reference.

Who this is for: Drivers, independent mechanics and fleet technicians who own or service 1.6L naturally aspirated Kia Rio, Kia Soul, Hyundai Accent or Hyundai Veloster models from the specified years and need a reliable upstream and downstream sensor pair. Choose this set if you require durable materials, quick sensor response, and a matched two-piece solution to restore accurate oxygen sensing and help clear emissions-related faults. Always verify connector, wire length and exact OEM cross-reference prior to installation to ensure proper fitment.