Denso 234-4875 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Reliable Oxygen Sensor for BMW and Rolls-Royce Models

The Denso OE Style Oxygen Sensor 234-4875 is engineered to provide precise emission control for select BMW and Rolls-Royce vehicles. Designed as a specific fit part, this heated oxygen sensor ensures accurate air-fuel mixture readings to maintain optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• Specific fit for BMW 550i, 650i, 750i, 750Li, 760Li, M3 and Rolls-Royce Phantom, X5, X6 models
• 12.20-inch wiring harness length for proper installation
• Four-wire configuration with female connector
• Threaded mounting with 0.708-inch thread diameter

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor 234-4875 is manufactured to match the fit, form, and function of the factory-installed sensor, ensuring compatibility and reliable performance for BMW and Rolls-Royce vehicles. The OE Style designation indicates a direct replacement part designed to integrate seamlessly with your vehicle’s emission control system.

Detailed Product Features and Specifications

This Denso oxygen sensor features a heated element to reduce warm-up time, improving sensor accuracy shortly after engine start. The 12.20-inch wiring harness length allows for proper routing and connection within the engine bay. With four wires and a female connector, it supports the necessary signal and heater circuits. The threaded mounting type with a 0.708-inch diameter ensures secure installation in the exhaust system. This sensor is a specific fit for BMW models including the 550i, 650i, 750i, 750Li, 760Li, M3, and Rolls-Royce Phantom, X5, and X6, making it suitable for emission control system repairs on these vehicles.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel ratio management
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by ensuring correct emissions feedback
• Helps reduce harmful exhaust emissions to meet regulatory standards
• Prevents engine performance issues caused by faulty sensor readings

Installation Notes and Tips

When installing the Denso 234-4875 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector gender matches the vehicle harness for a secure connection. Follow torque specifications recommended by the vehicle manufacturer to prevent leaks or sensor damage. This sensor’s specific fit design simplifies installation on compatible BMW and Rolls-Royce models.

Quality Assurance and Warranty Information

Denso manufactures this OE Style oxygen sensor to meet strict quality standards, ensuring durability and reliable operation. The part number 234-4875 undergoes rigorous testing to comply with OEM specifications. While warranty details may vary, Denso typically offers coverage against defects in materials and workmanship, providing confidence in the sensor’s long-term performance.