Denso 234-4754 Oxygen Sensor - Downstream or Downstream Right

Reliable Oxygen Sensor for Audi, Porsche, Volkswagen, and More

The Denso OE Style 234-4754 oxygen sensor is designed to provide precise emissions control for specific vehicle models including Audi A3, Porsche Cayenne, and Volkswagen Golf. This heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and reduce emissions.

• Heated sensor type for faster response times
• Specific fit for select Audi, Bentley, Porsche, and Volkswagen models
• 28.74-inch wiring harness length for convenient installation
• Four-wire design with male connector for secure connection
• Threaded mounting type with 0.708-inch thread diameter

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. The 234-4754 sensor is part of this line, providing a direct replacement that matches factory fit and function. This ensures compatibility and reliable performance for vehicles requiring a specific sensor design.

Detailed Product Description

The Denso 234-4754 oxygen sensor features a heated element that allows the sensor to reach operating temperature quickly, improving emissions control during cold starts. Its four-wire configuration supports both the sensor signal and heater circuit, enhancing durability and accuracy. The 28.74-inch wiring harness length provides flexibility during installation, while the male connector and threaded mounting type ensure a secure and precise fit. This sensor is designed specifically for models such as the Audi A4 Quattro, Porsche Cayenne, and Volkswagen Passat CC, among others.

Common Issues Addressed by This Oxygen Sensor

• 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 such as rough idling or hesitation
• Heater circuit failure causing delayed sensor response

Installation Notes and Tips

• Ensure vehicle compatibility by verifying make and model before installation
• Disconnect the battery before replacing the sensor to avoid electrical issues
• Use appropriate tools to avoid damaging the threaded mounting
• Check wiring harness length and connector type for proper fit
• Follow manufacturer torque specifications when installing the sensor

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. The 234-4754 part number undergoes rigorous testing to ensure durability and reliable performance. Warranty coverage details should be confirmed with the original equipment manufacturer or authorized distributor.