Denso 234-5172 Air / Fuel Ratio Sensor - Upstream

Overview of the Denso OE Style Air/Fuel Ratio Sensor

The Denso OE Style Air/Fuel Ratio Sensor 234-5172 is designed specifically for Ford Fusion models, providing precise air and fuel mixture readings. This heated sensor ensures optimal engine performance and emission control by maintaining accurate data for the vehicle's engine management system.

• Heated sensor type for faster response times
• Specific fit for Ford Fusion vehicles
• 11.46-inch wiring harness length for proper installation
• Five-wire configuration with male connector
• Thread diameter of 0.708 inches for secure mounting
• Regular grade type for reliable operation

Detailed Product Description

The Denso 234-5172 air/fuel ratio sensor is engineered to meet the exact specifications of Ford Fusion vehicles. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate air-fuel mixture data to the engine control unit. The sensor includes a 5-wire harness with a male connector, ensuring compatibility with the vehicle’s wiring system. With a wiring harness length of 11.46 inches and a thread diameter of 0.708 inches, this sensor is designed for straightforward installation and secure fitment. The regular grade type construction supports consistent performance under normal driving conditions.

About the OE Style Product Line

The Denso OE Style product line focuses on delivering parts that closely match original equipment specifications. This ensures that the 234-5172 air/fuel ratio sensor integrates seamlessly with the Ford Fusion’s emission control system, maintaining factory-level performance and reliability. OE Style parts are designed to provide a balance of quality and value for specific vehicle applications.

Common Applications and Issues Addressed

• Helps maintain proper air/fuel mixture for efficient combustion
• Reduces engine hesitation 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 sensor faults
• Improves fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

• Verify compatibility with Ford Fusion before installation
• Handle the sensor carefully to avoid damage to the heated element
• Ensure the wiring harness is properly connected to the male connector
• Use appropriate tools to tighten the sensor to the specified 0.708-inch thread diameter
• Follow vehicle manufacturer torque specifications during installation

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 234-5172 air/fuel ratio sensor undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed with the parts provider or vehicle manufacturer.