Denso 234-5119 Air / Fuel Ratio Sensor - Upstream, Upstream Left or Upstream Right

Reliable Air/Fuel Ratio Sensor for Audi, Porsche, and Volkswagen

The Denso OE Style 234-5119 air/fuel ratio sensor is engineered for precise emission control in select Audi, Bentley, Porsche, and Volkswagen vehicles. Designed as a specific fit part, it ensures accurate sensor readings critical for optimal engine performance and reduced emissions.

• Heated sensor type for faster response times
• 67.56-inch wiring harness length for proper installation
• Five-wire configuration with male connector
• Thread diameter of 0.711 inches for secure mounting
• Regular grade type designed for specific vehicle applications

About the Denso OE Style Product Line

The OE Style line from Denso offers direct replacement parts that meet original equipment specifications. The 234-5119 air/fuel ratio sensor is part of this line, providing a reliable and precise fit for vehicles such as the Audi A8 Quattro, Porsche Cayenne, and Volkswagen Beetle. This ensures compatibility and performance consistent with factory-installed components.

Detailed Product Description

This heated air/fuel ratio sensor features a 67.56-inch wiring harness and a five-wire setup with a male connector, designed specifically for certain Audi, Bentley, Porsche, and Volkswagen models. The sensor’s 0.711-inch thread diameter allows for secure installation in the exhaust system. Its regular grade type construction supports consistent operation under typical driving conditions. The sensor plays a critical role in monitoring exhaust gases to help the engine control module adjust fuel delivery for efficient combustion and emissions control.

Common Applications and Issues Addressed

• Helps maintain proper air/fuel mixture for engine efficiency
• Reduces emissions by providing accurate sensor data
• Prevents engine performance issues related to faulty sensors
• Addresses check engine light triggers related to air/fuel ratio
• Supports smooth operation in Audi A8 Quattro, Porsche Panamera, and Volkswagen Phaeton

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Verify the sensor thread diameter of 0.711 inches matches the mounting location. Use the 67.56-inch wiring harness length to route the sensor cable without tension or interference. Confirm the male connector aligns with the vehicle’s wiring harness for a secure connection. Follow manufacturer torque specifications when tightening the sensor.

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. The 234-5119 part number undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the point of purchase or vehicle manufacturer guidelines.