Bosch 15367 Oxygen Sensor - Downstream Left or Downstream Right

Bosch Validated Oxygen Sensor for Kia and Hyundai

Bosch Part Number 15367 is a narrow-band heated oxygen sensor built for specific downstream applications on select Kia and Hyundai vehicles. It delivers air-fuel-ratio feedback to the ECU for stable closed-loop control, accurate combustion management, and lower emissions.

Compatible With 2006-2010 Kia Optima, downstream left or downstream right; 2007-2010 Kia Magentis, downstream left or downstream right; 2007-2010 Kia Rondo, downstream left or downstream right; and 2007-2009 Hyundai Santa Fe, downstream left or downstream right.

Key Features

• Bosch Validated Oxygen Sensor line for OE-style replacement fitment
• Narrow-band heated oxygen sensor for downstream exhaust monitoring
• Specific-fit design with square connector, male connector gender, and 4-terminal configuration
• Threaded mounting with 18 mm thread size and 22 mm hex size
• Wiring harness included with 17.2 in harness length and 19.5 in sealing-surface-to-connector length
• Metal housing and high-temperature-resistant construction for demanding exhaust conditions
• Cross-reference part numbers: 392103E120, 392103E140

Detailed Description

Bosch 15367 is engineered as a standard replacement oxygen sensor for downstream left and downstream right positions on select Kia Optima, Kia Magentis, Kia Rondo, and Hyundai Santa Fe applications. As part of the Bosch Validated Oxygen Sensor line, it reflects Bosch’s long OE development history in oxygen sensing, including narrowband designs that improve light-off response and closed-loop operation. The sensor uses a heated ceramic element and optimized heater control to maintain consistent signal output across changing exhaust temperatures and vibration loads.

This Bosch oxygen sensor is a direct-fit, threaded replacement with a 3-wire harness, blade terminals, and a male square connector. It is built for precise ECU feedback in vehicles that rely on narrow-band switching-type oxygen sensor input to manage fuel delivery and emissions performance. Bosch Part Number 15367 is a practical choice when replacing a worn downstream sensor on 2006-2010 Kia Optima, 2007-2010 Kia Magentis, 2007-2010 Kia Rondo, or 2007-2009 Hyundai Santa Fe.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Slow or inaccurate downstream O2 sensor signal response
• Unstable air-fuel control caused by aging sensor output
• Emissions test failures tied to sensor degradation
• Rough combustion control from inconsistent exhaust feedback

Installation Notes and Tips

Confirm the downstream left or downstream right position before ordering, since this sensor is specific-fit and not universal. Verify the 18 mm thread diameter, threaded mounting style, and connector shape against the original sensor before installation. Inspect the harness routing and connector orientation to ensure proper clearance from exhaust heat and moving components. Bosch 15367 is intended for direct replacement on the listed Kia and Hyundai applications, including 2006-2010 Kia Optima and 2007-2009 Hyundai Santa Fe.

Quality Assurance

Bosch draws on more than five decades of oxygen sensor development and OE engineering experience. The Bosch Validated Oxygen Sensor line is built to OE-proven standards for signal accuracy, heater performance, and durability in high-temperature exhaust environments.