Denso 234-5084 Air / Fuel Ratio Sensor - Upstream

Overview of the Denso OE Style Air/Fuel Ratio Sensor

The Denso OE Style Air/Fuel Ratio Sensor 234-5084 is designed specifically for select Mercedes-Benz models, including the E350 and Sprinter series. This heated sensor ensures accurate air and fuel mixture readings to support optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for Mercedes-Benz E350, Sprinter 2500, Sprinter 3500, and Sprinter 3500XD
• 21.73-inch wiring harness length for precise installation
• Five-wire configuration with male connector
• Thread diameter of 0.711 inches for secure mounting
• Regular grade type for reliable operation

Detailed Product Description

This Denso air/fuel ratio sensor, part number 234-5084, is engineered to meet the exact specifications of Mercedes-Benz vehicles such as the E350 and Sprinter 2500, 3500, and 3500XD models. Featuring a heated sensor element, it provides quicker sensor activation and more accurate readings under various operating conditions. The 21.73-inch wiring harness length allows for proper routing and connection within the engine bay, while the five-wire design ensures comprehensive signal transmission. The male connector and 0.711-inch thread diameter facilitate a secure and precise fit, maintaining the integrity of the emission control system.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that closely replicate original equipment specifications. This air/fuel ratio sensor is part of that line, offering a direct replacement solution that aligns with factory standards for fit, form, and function. Choosing the OE Style sensor helps maintain the emission control performance expected from Mercedes-Benz vehicles.

Common Applications and Issues Addressed

• Helps correct inaccurate air/fuel mixture readings
• Resolves engine performance issues related to faulty sensors
• Supports emission system compliance and reduces exhaust pollutants
• Prevents check engine light triggers related to sensor faults
• Improves fuel efficiency by ensuring proper combustion

Installation Notes and Tips

When installing the Denso 234-5084 sensor, ensure the engine is cool to avoid burns. Use appropriate tools to avoid damaging the 0.711-inch threaded fitting. Verify the wiring harness length and connector type match the vehicle’s original sensor to ensure proper fitment. It is recommended to clear any diagnostic trouble codes after installation to reset the vehicle’s engine control unit.

Quality Assurance and Warranty

Denso manufactures this air/fuel ratio sensor to meet stringent quality standards, ensuring reliable operation within the emission control system. The part is designed for durability and consistent performance in Mercedes-Benz E350 and Sprinter models. Warranty details should be confirmed with the point of purchase or manufacturer documentation.