Bosch 16150 Oxygen Sensor - Downstream or Upstream

Bosch Actual OE Oxygen Sensor for Hyundai and Kia

Bosch 16150 is a narrow-band heated oxygen sensor built for precise air-fuel ratio feedback to the ECU. It supports stable combustion control and emissions management on select Hyundai Elantra and Kia Forte applications, including upstream and downstream locations.

• Actual OE Oxygen Sensor from Bosch Actual OE Oxygen Sensor line
• Narrow-band heated design for closed-loop fuel control
• Specific fit with square connector, 4-wire harness, and threaded mounting
• Metal housing with high-temperature-resistant construction
• 22.2 in wiring harness length and included wiring harness
• 18 mm thread size, 22 mm hex size, blade terminals, male connector

OE-Style Sensor Performance

Bosch 16150 uses advanced ceramic sensing elements and controlled heater operation to deliver fast light-off and accurate lambda feedback across changing exhaust temperatures. Bosch has decades of OE oxygen sensor development behind this design, and the sensor follows the same narrow-band switching approach used for closed-loop mixture correction in modern emission systems. This part number 16150 is a direct replacement choice for drivers servicing Hyundai Elantra and Kia Forte emissions faults or drivability concerns tied to oxygen sensor response.

This part cross-references Hyundai/Kia OE number 392102E400 for the same application.

Fitment

• Fits 2014-2016 Hyundai Elantra, Downstream, Actual OE Oxygen Sensor
• Fits 2015 Hyundai Elantra, Upstream, Actual OE Oxygen Sensor
• Fits 2014 Hyundai Elantra, Upstream, with California Emission System; Actual OE Oxygen Sensor
• Fits 2011-2013 Hyundai Elantra, Downstream, with California Emission System; Actual OE Oxygen Sensor
• Fits 2013-2014 Hyundai Elantra Coupe, Upstream, with California Emission System; Actual OE Oxygen Sensor
• Fits 2013-2014 Hyundai Elantra GT, Downstream, with California Emission System; Actual OE Oxygen Sensor
• Fits 2014-2015 Kia Forte, Downstream, Located After Primary Converter; Actual OE Oxygen Sensor
• Fits 2014-2016 Kia Forte, Upstream, Located on Bottom; Actual OE Oxygen Sensor
• Fits 2014-2016 Kia Forte Koup, Upstream, Located on Bottom; Actual OE Oxygen Sensor
• Fits 2014-2016 Kia Forte5, Upstream, Located on Bottom; Actual OE Oxygen Sensor

Common Problems This Sensor Addresses

• Check engine light related to oxygen sensor response or circuit faults
• Rough idle or unstable air-fuel correction during closed-loop operation
• Inaccurate exhaust oxygen readings affecting fuel trim control
• Emissions test failures tied to a worn upstream or downstream sensor
• Delayed sensor switching after cold start or extended heat exposure

Installation Notes

Verify the sensor position before ordering, since Bosch 16150 is used in both upstream and downstream locations depending on the vehicle. Confirm the 4-wire connector, 18 mm thread size, and threaded mounting style match the original sensor on your Hyundai Elantra or Kia Forte application. Inspect the harness routing and connector orientation before installation to avoid strain on the lead.

Quality Assurance

Bosch builds this oxygen sensor to OE-level specifications using durable materials, ceramic sensing technology, and heater control calibrated for consistent operation under heat and vibration. The Bosch Actual OE Oxygen Sensor line reflects Bosch’s long-running OE development in emissions control sensors, giving buyers a replacement that follows the original equipment design approach for the listed applications.