Bosch 15644 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Kia Spectra Vehicles

The Bosch Actual OE Oxygen Sensor 15644 is designed specifically for Kia Spectra models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor provides accurate air-fuel mixture readings to help maintain your vehicle’s emission standards.

• Wiring harness length: 19.9 inches
• Terminal type: Blade with 4 terminals
• Connector shape: Rectangle, male gender
• Overall length: 23.2 inches
• Threaded mounting type with 18 mm thread diameter
• Heated narrow-band oxygen sensor for improved response
• Metal housing with steel finish for durability
• Includes wiring harness for direct replacement

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct fit and reliable performance. This product line focuses on delivering standard replacement sensors that maintain factory-level emission control and engine efficiency. The 15644 sensor is part of this line, offering a precise fit for Kia Spectra vehicles and ensuring compatibility with the vehicle’s existing wiring and mounting requirements.

Product Details and Specifications

This Bosch oxygen sensor features a 4-wire design with blade terminals and a rectangular male connector, facilitating straightforward installation. The sensor is heated, which allows it to reach operating temperature quickly for accurate readings. Its threaded mounting type with an 18 mm diameter and 22 mm hex size ensures secure attachment to the exhaust system. The metal housing with a steel finish provides resistance to heat and corrosion, supporting long-term durability. The included wiring harness measures 19.9 inches, with an overall length of 23.2 inches from sealing surface to connector end, matching Kia Spectra’s factory specifications.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio monitoring for Kia Spectra
• Helps resolve check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing precise emission data
• Reduces harmful exhaust emissions to meet regulatory standards
• Prevents engine performance issues caused by faulty sensors

Installation Notes and Tips

When installing the Bosch 15644 oxygen sensor, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the connector matches the existing wiring harness on your Kia Spectra to avoid compatibility issues. Thread the sensor carefully to prevent cross-threading and tighten to manufacturer torque specifications. The included wiring harness simplifies the replacement process, but inspect all connections for secure fitment.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor 15644 is a standard replacement part designed to match OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship. Refer to Bosch’s warranty policy for complete information.