Bosch 15562 Oxygen Sensor - Downstream Left or Downstream Right

Bosch Validated Oxygen Sensor for Hyundai and Kia

Bosch 15562 is a narrow-band heated oxygen sensor built for specific downstream applications on select Hyundai and Kia vehicles. It delivers air-fuel-ratio feedback to the ECU for stable closed-loop control, accurate lambda measurement, and lower emissions under changing operating conditions.

For drivers searching for a Bosch Validated Oxygen Sensor for a 2002-2005 Kia Sedona downstream right or a 2001-2003 Hyundai XG350/XG300 downstream left, part number 15562 provides an OE-style replacement backed by Bosch oxygen sensor development.

Key Features

• Specific-fit Bosch oxygen sensor for targeted downstream applications
• Narrow-band heated sensor design for quicker closed-loop operation
• 4-wire configuration with square male connector and blade terminals
• Threaded mounting with 18 mm thread size and 22 mm hex size
• Wiring harness included with 30 in harness length
• Metal housing and high-temperature-resistant construction
• Bosch Validated Oxygen Sensor line built on Bosch OE development experience

Product Details

Bosch 15562 uses a switching-type narrow-band design to monitor exhaust oxygen content and send precise feedback to the engine control unit. That signal helps the ECU maintain the correct air-fuel ratio during normal driving, warm-up, and steady-state operation. The heated sensor element supports faster light-off and quicker transition into closed-loop control, while the threaded steel-bodied construction is made for demanding exhaust temperatures and vibration.

This part cross-references Monroe Shocks & Struts (e.g., 3921039025) for the same application. It is a direct-fit oxygen sensor for 2002-2005 Kia Sedona, downstream right, and for 2001-2003 Hyundai XG350/XG300, downstream left. Part number 15562 is also listed as a Bosch Validated Oxygen Sensor for these applications.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture feedback to the ECU
• Slow sensor response during closed-loop operation
• Elevated exhaust emissions from a worn downstream sensor
• Rougher combustion control caused by inaccurate lambda readings

Installation Notes and Tips

Verify the connector shape, wire count, thread size, and mounting position before installation. Bosch 15562 is a specific-fit sensor with a threaded mount, 4-wire harness, and square connector, so matching the original sensor layout is important for proper installation. Confirm downstream left or downstream right placement by vehicle application before replacing the part.

For fitment-based searches, this part fits 2002-2005 Kia Sedona, downstream right; 2001-2003 Hyundai XG350, downstream left; and 2001 Hyundai XG300, downstream left. Use the vehicle’s original sensor location and connector style to confirm application before service.

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development behind this product line. The Validated Oxygen Sensor range is built to deliver OE-proven performance, accurate signal output, and durable operation in high-heat exhaust environments.