Bosch 13944 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Audi A6 and A6 Quattro

The Bosch Validated Oxygen Sensor 13944 is designed specifically for Audi A6 and A6 Quattro 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 Audi A6 and A6 Quattro
• Heated narrow-band oxygen sensor for fast response
• Threaded mounting type with 18 mm thread diameter
• Includes 35.9-inch wiring harness with 4 wires and blade terminals
• Durable metal housing with 22 mm hex size for installation
• Oblong 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 quality and performance standards. These sensors undergo rigorous validation to ensure compatibility and durability for specific vehicle applications. The 13944 oxygen sensor is part of this line, providing a dependable replacement option for Audi A6 and A6 Quattro emission control systems.

Detailed Product Description

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate oxygen level readings. The sensor’s metal housing and threaded mounting ensure a secure fit and long-lasting durability. With a wiring harness length of 35.9 inches and a total length of 39.4 inches, installation flexibility is enhanced. The oblong male connector with four blade terminals guarantees a stable electrical connection, essential for precise sensor operation.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio monitoring for Audi A6 and A6 Quattro
• Helps resolve engine performance issues related to faulty oxygen sensors
• Reduces emissions by ensuring proper catalytic converter function
• Prevents check engine light triggers caused by sensor failure
• Improves fuel efficiency by maintaining optimal combustion

Installation Notes and Tips

When installing the Bosch 13944 oxygen sensor, ensure the threaded mounting is properly tightened using a 22 mm hex socket. The sensor’s heated feature requires a secure electrical connection via the included wiring harness with blade terminals. Verify the oblong male connector is fully seated to avoid signal interruptions. No mounting bracket is included, so use the existing vehicle hardware for installation.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 13944 is manufactured with high-quality metal housing and components to meet OEM standards. This standard replacement grade sensor is designed for durability and consistent performance. Bosch products typically come with a limited warranty; please refer to Bosch or your parts provider for specific warranty details.