Bosch 13550 Oxygen Sensor - Downstream Right

Reliable Oxygen Sensor for Audi and Volkswagen Vehicles

The Bosch Actual OE Oxygen Sensor 13550 is designed specifically for select Audi and Volkswagen models, including the A4, A4 Quattro, A6, A6 Quattro, and Passat. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Brand: Bosch
• Brand Line: Actual OE Oxygen Sensor
• Part Number: 13550
• Fitment: Audi A4, A4 Quattro, A6, A6 Quattro, Volkswagen Passat
• Oxygen Sensor Type: Narrow-band heated
• Thread Size: 18 mm, Threaded Mounting
• Wiring Harness Length: 23.3 inches
• Connector: 4-wire, round male connector
• Overall Length: 27 inches
• Housing Material: Metal with steel finish
• Hex Size: 22 mm
• Wiring Harness Included

About the Bosch Actual OE Oxygen Sensor Line

The Bosch Actual OE Oxygen Sensor product line is engineered to meet original equipment specifications for precise fit and function. This ensures that the sensor integrates seamlessly with the vehicle’s emission control system, providing reliable feedback to the engine control unit. The 13550 sensor maintains the standards expected from Bosch’s OE-quality components, supporting emission compliance and engine efficiency.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate oxygen level readings. The sensor includes a 4-wire configuration with a round male connector and female terminals, facilitating straightforward electrical connections. Its threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for secure installation. The sensor’s metal housing with a steel finish offers durability under high-temperature conditions. The included wiring harness measures 23.3 inches, with an overall length of 27 inches, providing sufficient reach for proper placement in the exhaust system.

Common Applications and Issues Addressed

• Restores accurate air-fuel mixture readings for Audi A4 and A6 models
• Helps resolve engine performance issues related to faulty oxygen sensors
• Supports emission control compliance for Volkswagen Passat vehicles
• Reduces rough idling and poor fuel economy caused by sensor failure
• Prevents check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s specifications. Thread the sensor carefully to avoid cross-threading and tighten to manufacturer torque specifications. The Bosch 13550 sensor includes a wiring harness for direct replacement, simplifying 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 13550 is a standard replacement part designed to meet or exceed OEM specifications. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship to provide confidence in the product’s longevity.