Bosch 17431 Oxygen Sensor - Upstream

Overview of Bosch Actual OE Oxygen Sensor 17431

The Bosch Actual OE Oxygen Sensor 17431 is designed specifically for select Audi and Volkswagen models, including the A3, A3 Quattro, Beetle, CC, Eos, GTI, Jetta, and Passat. This heated wide-band oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated oxygen sensor for faster response times
• Specific fit for Audi and Volkswagen vehicles
• Wide-band sensor type for precise air-fuel ratio monitoring
• 23.8-inch wiring harness with oblong male connector
• Threaded mounting type with 18 mm thread diameter
• Standard replacement grade with metal housing and 22 mm hex size
• Includes wiring harness with 5 wires and 6 terminals

Detailed Product Description

This Bosch oxygen sensor, part number 17431, belongs to the Actual OE Oxygen Sensor line, which provides direct replacement parts engineered to meet original equipment specifications. The sensor features a heated element to reduce warm-up time, improving emissions control and fuel efficiency. Its wide-band sensor technology offers a broader measurement range compared to narrow-band sensors, allowing for more accurate air-fuel ratio adjustments.

The sensor is constructed with a durable metal housing and threaded mounting type (18 mm thread diameter) for secure installation. The wiring harness measures 23.8 inches in length and includes a male oblong connector with 5 wires and 6 terminals, designed for specific fitment to ensure compatibility with the listed Audi and Volkswagen models.

Compatible Vehicles and Applications

• Compatible with Audi A3 and A3 Quattro models
• Fits Volkswagen Beetle, CC, Eos, GTI, Jetta, and Passat
• Used to monitor and regulate exhaust emissions
• Helps maintain engine performance and fuel economy
• Replaces faulty or worn oxygen sensors causing check engine lights or poor fuel efficiency

Installation Notes and Tips

• Ensure vehicle compatibility by verifying make, model, and year
• Use a 22 mm oxygen sensor socket for removal and installation
• Do not overtighten; torque to manufacturer specifications
• Inspect wiring harness and connector for damage before installation
• Allow engine to cool before replacing the sensor to avoid burns

Quality Assurance and Warranty

The Bosch Actual OE Oxygen Sensor 17431 is manufactured to meet strict quality standards, ensuring reliable performance and durability. Bosch provides a standard replacement grade sensor engineered to match original equipment specifications. While specific warranty details are not provided here, Bosch typically offers limited warranties on their oxygen sensors to cover defects in materials and workmanship.