Mando 18A1446 Oxygen Sensor - Downstream, Downstream Left or Upstream Left

Mando Downstream Oxygen Sensor for Hyundai and Kia

Mando Oxygen Sensor 18A1446 is a New Original Equipment replacement for select Hyundai and Kia applications. It monitors exhaust oxygen content to help the engine control module maintain the proper air-fuel mixture, supporting stable combustion and efficient operation.

Key Features

• OE-style downstream oxygen sensor for factory-matched fit and function
• Factory precision specifications from Mando New Original Equipment
• Supports air-fuel mixture monitoring for Hyundai and Kia engines
• Direct replacement for select downstream, downstream left, and upstream left locations
• Part number 18A1446 for easy identification and ordering

Detailed Description

This Mando O2 sensor is built as an OE replacement for Hyundai Sonata, Hyundai Santa Fe, Hyundai XG300, Hyundai XG350, Kia Optima, and Kia Sedona applications listed below. It is engineered to match original equipment specifications, helping restore accurate exhaust feedback to the engine management system. This part number 18A1446 is a practical choice when replacing a failed sensor that has triggered drivability or emissions-related concerns.

Mando’s New Original Equipment line focuses on factory-precision replacement parts for Hyundai and Kia vehicles. For shoppers searching for a downstream oxygen sensor for 1999-2005 Hyundai Sonata with close coupled catalyst, or a replacement O2 sensor for 2001-2006 Kia Optima, this part provides the correct OE-style application match.

This part cross-references Hyundai 39210-38015 and Kia 39210-38015 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough or unstable engine idle
• Poor fuel economy caused by incorrect air-fuel feedback
• Hard starting concerns tied to sensor signal issues
• Emissions system faults on Hyundai and Kia vehicles

Installation Notes and Fitment

• Fits 2001-2006 Kia Optima, downstream
• Fits 1999-2005 Hyundai Sonata, downstream, w/ Close Coupled Catalyst (Manifold)
• Fits 2002-2005 Kia Sedona, downstream
• Fits 2001-2004 Hyundai Santa Fe, downstream
• Fits 2002 Hyundai XG350, downstream left
• Fits 2001 Hyundai XG300, upstream left
• Fits 2001 Hyundai XG300, downstream left

Verify the sensor position and connector routing against the original part before installation. Confirm the vehicle’s emissions configuration, especially on Sonata applications with a close coupled catalyst, to ensure the correct replacement location.

Quality Assurance

Mando New Original Equipment parts are built to factory precision specifications for Hyundai and Kia platforms, supporting OE-style fitment and sensor performance.