Bosch 15536 Oxygen Sensor - Downstream

Bosch Oxygen Sensor for Kia Rio

Bosch 15536 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 2001-2002 Kia Rio downstream applications.

Key Features

• Specific-fit oxygen sensor for direct application matching
• Narrow-band heated design for faster closed-loop operation
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• 4-wire configuration with blade terminals and rectangular connector
• Wiring harness included with 14.4 in harness length
• Metal housing and high-temperature-resistant construction for demanding exhaust conditions
• Overall length: 18.1 in; sealing surface to connector end: 16.9 in

Product Details

Bosch Engineered Oxygen Sensor 15536 uses Bosch OE development experience to deliver accurate switching-type O2 sensor performance for downstream monitoring. The sensor measures exhaust oxygen content and sends the signal needed for fuel control adjustments, helping the engine maintain proper combustion balance. This Bosch oxygen sensor is a direct-fit replacement for 2001-2002 Kia Rio downstream locations and is built with a heated narrow-band sensor element for quicker operating response.

This part cross-references 0K32B18861 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough idle caused by inaccurate air-fuel feedback
• Increased emissions from delayed or unstable sensor response
• Fuel trim issues tied to a worn downstream O2 sensor
• Slow closed-loop transition after startup

Installation Notes

Fits 2001-2002 Kia Rio, downstream. Verify connector shape, thread size, and harness routing before installation. Use the threaded mounting point and correct 18 mm hex tool for removal and installation. Confirm the exhaust bung condition and sensor location before replacing the original unit.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE sensor development and aftermarket supply experience. The Bosch Engineered Oxygen Sensor line is built around OE-proven design principles, including ceramic sensing elements, controlled heater operation, and materials selected for exhaust heat and vibration exposure.