Denso 234-5026 Air / Fuel Ratio Sensor - Upstream

Overview of the Denso OE Style Air/Fuel Ratio Sensor

The Denso OE Style Air/Fuel Ratio Sensor 234-5026 is engineered specifically for select BMW and Mini models. This heated sensor ensures accurate air and fuel mixture readings, contributing to optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for BMW and Mini vehicles
• 19.17-inch wiring harness length for precise installation
• Five-wire configuration with female 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 234-5026, belongs to the OE Style product line, designed to meet original equipment specifications. The OE Style line focuses on delivering sensors that match factory fit and function, ensuring compatibility and performance consistency. This sensor features a heated element to provide quicker sensor activation and more accurate readings under various operating conditions.

With a wiring harness length of 19.17 inches and a five-wire setup, this sensor is tailored for specific BMW and Mini models including the 550i, 650i, 750i series, M5, M6, X5, X6, and Cooper variants. The female connector and 0.711-inch thread diameter facilitate a secure and precise installation, maintaining the integrity of the vehicle’s emission control system.

Applications and Problem Resolution

• Helps maintain proper air/fuel mixture for efficient combustion
• Reduces engine misfires and rough idling caused by faulty sensors
• Supports emission control compliance by providing accurate sensor data
• Prevents check engine light triggers related to air/fuel ratio issues
• Improves fuel economy by ensuring optimal sensor performance

Installation Notes and Tips

Ensure the vehicle is cool before sensor replacement to avoid injury. The 19.17-inch wiring harness length allows for straightforward routing without excessive tension. Confirm the female connector matches the vehicle’s harness to avoid connection issues. Use appropriate tools to avoid damaging the 0.711-inch threaded sensor during installation.

Quality Assurance and Warranty

Denso’s OE Style sensors are manufactured to meet strict quality standards, providing reliable performance consistent with original equipment. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties to ensure customer confidence and product durability.