Bosch 18153 Oxygen Sensor - Downstream Right

Bosch Validated Oxygen Sensor for Select Hyundai and Kia

Bosch 18153 is a narrow-band heated oxygen sensor built for specific downstream right applications on select Hyundai and Kia vehicles. It provides air-fuel-ratio feedback to the ECU for stable combustion control and emissions monitoring, with OE-developed sensor technology behind it.

Key Features

• Specific-fit Bosch Validated Oxygen Sensor for targeted vehicle applications
• Narrow-band heated O2 sensor with 4-wire configuration
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Square connector with male terminals and included wiring harness
• Steel-finish metal housing for high-temperature and vibration exposure
• Wiring harness length: 28.1 in; overall length: 31.5 in

Product Details

Bosch 18153 uses a switching-type narrow-band design to send precise oxygen-content data to the engine control unit. Bosch developed this sensor family from its original oxygen sensor work and later planar narrowband designs, focusing on faster light-off, accurate lambda feedback, and quicker closed-loop operation. This part cross-references Bosch Validated Oxygen Sensor 18153 for the same application.

Compatible With 2014-2018 Kia Sedona, downstream right; 2012-2017 Hyundai Azera, downstream right; and 2014-2016 Kia Cadenza, downstream right. If you are replacing a downstream right oxygen sensor on a Kia Sedona, Hyundai Azera, or Kia Cadenza, Bosch 18153 matches the listed OE-style application.

Common Replacement Reasons

• Check engine light related to oxygen sensor performance
• Rough idle or unstable air-fuel mixture control
• Inaccurate downstream sensor readings during emissions monitoring
• Slow sensor response after heat cycling or vibration exposure
• Failed emissions inspection tied to O2 sensor faults

Installation Notes

Verify the downstream right location, connector shape, wire length, and 18 mm thread size before installation. The sensor is heated and threaded, so proper routing of the included harness and secure connector engagement are important for reliable operation. Confirm the vehicle application by year, make, model, and position before replacing the original sensor.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development and aftermarket supply experience. The design reflects Bosch’s OE-proven approach to sensor accuracy, heater control, and durability under thermal and vibration load.