Bosch 13748 Oxygen Sensor - Upstream Left or Upstream Rear

Reliable Oxygen Sensor for Hyundai and Kia Vehicles

The Bosch Validated Oxygen Sensor 13748 is designed specifically for select Hyundai and Kia models, including the Magentis, Optima, Santa Fe, Sonata, and Tiburon. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance.

• Specific fit for Hyundai and Kia vehicles
• Heated narrow-band oxygen sensor for precise readings
• Threaded mounting type with 18 mm thread diameter
• Includes a 10.4-inch wiring harness with 4 wires and blade terminals
• Durable metal housing with a 22 mm hex size for installation
• Square male connector with 4 terminals for secure connection
• Standard replacement grade for reliable performance

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering sensors that meet strict validation standards for fit, form, and function. This ensures that the oxygen sensor 13748 integrates seamlessly with the vehicle’s emission system, providing consistent and accurate data to the engine control unit. The line emphasizes compatibility and durability, making it a dependable choice for emission control in Hyundai and Kia models.

Product Details and Specifications

This Bosch oxygen sensor features a heated narrow-band design, which allows it to reach operating temperature quickly for accurate oxygen level measurement. The sensor has a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size, facilitating straightforward installation. The wiring harness is 10.4 inches long and includes 4 wires with blade terminals, connected via a square male connector with 4 terminals. The sensor’s metal housing provides durability and resistance to harsh engine conditions. Overall length measures 13.4 inches, with a sealing surface to connector length of 12.2 inches, ensuring proper fitment in the specified Hyundai and Kia models.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate oxygen readings
• Prevents engine performance issues related to faulty sensors
• Resolves check engine light triggers caused by oxygen sensor faults
• Supports smooth engine idling and acceleration

Installation Notes and Tips

When installing the Bosch Validated Oxygen Sensor 13748, ensure the vehicle is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length and connector type match the vehicle’s specifications. The threaded mounting requires proper torque to avoid leaks or damage. No mounting bracket is included, so use the existing mounting point on the vehicle. Confirm compatibility with Hyundai Magentis, Optima, Santa Fe, Sonata, and Kia Tiburon models before installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet OEM standards for quality and reliability. The Bosch Validated Oxygen Sensor 13748 undergoes rigorous testing to ensure accurate sensor output and durability under typical operating conditions. This part is a standard replacement grade sensor designed to maintain emission control system integrity. Warranty coverage details should be confirmed with the parts provider or Bosch directly.