Bosch 13740 Oxygen Sensor - Downstream or Upstream

Overview of Bosch Actual OE Oxygen Sensor 13740

The Bosch Actual OE Oxygen Sensor 13740 is designed specifically for select Audi and Volkswagen models, including the A4, A4 Quattro, Golf, Jetta, and Passat. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance by monitoring exhaust gases effectively.

• Specific fit for Audi and Volkswagen vehicles
• Heated narrow-band oxygen sensor for precise readings
• Threaded mounting type with 18 mm thread diameter
• 42.4-inch wiring harness length with 4-wire configuration
• Oblong male connector with blade terminal type
• Durable steel housing with 22 mm hex size for installation
• Standard replacement grade for reliable performance

Detailed Product Features and Specifications

This Bosch oxygen sensor, part number 13740, belongs to the Actual OE Oxygen Sensor line, which focuses on delivering original equipment quality and fitment. The sensor features a heated narrow-band design, allowing it to reach operating temperature quickly for accurate air-fuel mixture readings. It includes a 42.4-inch wiring harness with four wires and blade terminals, ensuring proper electrical connections. The sensor’s oblong male connector and threaded mounting type with an 18 mm thread diameter provide a secure and precise fit. Constructed with a steel housing and weighing approximately 0.42 lbs, this sensor is built for durability and consistent performance.

Compatible Vehicles and Common Applications

This oxygen sensor is compatible with the following makes and models:

• Audi A4 and A4 Quattro
• Volkswagen Golf, Jetta, and Passat

It is designed to address issues such as:

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance problems like rough idling or hesitation
• Sensor failure caused by wiring or connector damage

Installation Notes and Tips

When installing the Bosch 13740 oxygen sensor, ensure the vehicle is cool to avoid burns. Use a 22 mm hex socket for removal and installation. Verify the wiring harness length and connector type match the vehicle’s specifications to ensure proper fitment. Avoid twisting or damaging the wiring harness during installation. No mounting bracket is included, so use the existing mounting point on the exhaust system.

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 13740 is manufactured to meet original equipment standards, providing reliable performance and durability. Bosch maintains strict quality control processes to ensure sensor accuracy and longevity. While specific warranty details are not provided here, Bosch typically offers limited warranties on their OE replacement parts. Consult Bosch or your parts provider for exact warranty terms.