Bosch 15643 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Kia Spectra Vehicles

The Bosch Actual OE Oxygen Sensor 15643 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 efficient combustion and reduce harmful emissions.

• Specific fit for Kia Spectra for accurate compatibility
• Heated narrow-band oxygen sensor type for faster response
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 14-inch wiring harness with 4 wires and a rectangular male connector
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade for reliable performance
• Overall length of 17.3 inches with 16.1 inches from sealing surface to connector end

About the Bosch Actual OE Oxygen Sensor Product Line

The Bosch Actual OE Oxygen Sensor line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This product line focuses on delivering precise sensor readings and durability, which are critical for maintaining emission standards and engine efficiency. The 15643 sensor is part of this line, ensuring it matches the exact fit and function required by Kia Spectra vehicles.

Detailed Product Description

This Bosch oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate air-fuel ratio monitoring. The sensor’s metal housing and threaded mounting ensure secure installation and resistance to harsh engine conditions. With a 4-wire configuration and a blade terminal type, the sensor connects via a rectangular male connector, facilitating straightforward integration with the vehicle’s wiring harness. The included wiring harness measures 14 inches, providing sufficient length for proper routing in the engine bay.

Common Issues Addressed by This Oxygen Sensor

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased vehicle emissions failing regulatory standards
• Engine performance problems such as rough idling or hesitation
• Failed emissions tests due to sensor malfunction

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use a 22 mm oxygen sensor socket for proper removal and installation
• Apply anti-seize compound on the sensor threads if not pre-coated
• Verify connector polarity and secure connection to prevent signal issues
• Check for any wiring damage or corrosion before installation

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Actual OE Oxygen Sensor 15643 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 to provide confidence in your purchase.