Bosch 15829 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Bosch OE Quality Oxygen Sensor 15829

Bosch 15829 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 for select Hyundai and Kia applications, including downstream service on Palisade, Telluride, Sportage, Tucson, Santa Fe, Optima, Sorento, and Sonata models.

Key Features

• OE Quality Oxygen Sensor from Bosch
• Narrow-band heated O2 sensor for closed-loop fuel control
• Specific-fit design with 4-wire, blade-terminal connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Square male connector with male terminals
• Metal housing and steel finish for underbody service conditions
• Wiring harness length: 24.7 in; overall length: 28.2 in
• Mounting bracket included

Product Details

Bosch OE Quality Oxygen Sensor 15829 uses a switching-type narrow-band design to deliver accurate oxygen content readings to the engine control unit. Bosch developed this sensor family from its original thimble sensor architecture and later planar narrowband designs, focusing on faster light-off, quicker closed-loop operation, and reliable lambda accuracy. The result is a direct-fit replacement for downstream sensor service where consistent signal response matters. This Bosch 15829 oxygen sensor is a practical choice for Hyundai Palisade and Kia Telluride downstream right applications, as well as other listed Hyundai and Kia models with downstream sensor locations.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback to the ECU
• Rough idle or unstable combustion control caused by a worn downstream sensor
• Emissions test failures tied to sensor response issues
• Slow closed-loop operation after sensor aging or contamination

Installation Notes and Tips

Verify the connector shape, wire count, and threaded mounting style before installation. This Bosch 15829 sensor uses a 4-wire harness, square male connector, and 18 mm thread size, so matching the original sensor configuration is important for proper fitment. Inspect the exhaust bung threads and wiring routing before tightening the sensor to avoid damage during service. Fits 2020-2025 Hyundai Palisade, downstream right; Fits 2020-2025 Kia Telluride, downstream right; Fits 2017-2022 Kia Sportage, downstream; Fits 2018-2021 Hyundai Tucson, downstream; Fits 2019-2020 Hyundai Santa Fe, downstream; Fits 2016-2020 Kia Optima, downstream; Fits 2019-2020 Kia Sorento, downstream left; Fits 2017-2018 Hyundai Santa Fe Sport, downstream; Fits 2016-2018 Kia Sorento, downstream; Fits 2015-2017 Hyundai Sonata, downstream.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development and aftermarket supply experience. The sensor uses advanced ceramic elements, controlled heater operation, and high-temperature-resistant materials to maintain consistent performance under thermal and vibration load.