Denso 234-5173 Air / Fuel Ratio Sensor - Upstream or Upstream Right

Reliable Air/Fuel Ratio Sensor for Ford and Lincoln Vehicles

The Denso OE Style Air/Fuel Ratio Sensor 234-5173 is designed to provide precise emissions control for select Ford and Lincoln models. Engineered as a specific fit part, this heated sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• Specific fit for Ford and Lincoln models including F-150, Explorer, Mustang, and more
• 14.65-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 standard durability and performance

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. This ensures that the 234-5173 Air/Fuel Ratio Sensor matches the fit, form, and function of the factory-installed component. Designed for direct replacement, the OE Style sensor supports reliable emissions control and engine management systems in compatible vehicles.

Detailed Product Description

This Denso Air/Fuel Ratio Sensor 234-5173 features a heated sensor element that allows it to reach operating temperature quickly, improving the accuracy of air-fuel mixture readings. The sensor’s 14.65-inch wiring harness length and five-wire design with a male connector provide a precise and secure connection to the vehicle’s engine control unit. With a thread diameter of 0.708 inches, it installs firmly into the exhaust system. This sensor is a specific fit for various Ford and Lincoln models, including the Ford F-150, F-250 Super Duty, Explorer, Edge, Escape, Focus, Fusion, Mustang, and Lincoln MKC, MKT, MKX, MKZ, Nautilus, and Taurus.

Common Applications and Issues Addressed

• Helps maintain proper air/fuel mixture for efficient combustion
• Reduces emissions by providing accurate sensor data to the ECU
• Prevents engine performance issues related to faulty air/fuel ratio readings
• Resolves check engine light triggers related to sensor malfunction
• Supports fuel economy by ensuring optimal sensor operation

Installation Notes and Tips

When installing the Denso 234-5173 Air/Fuel Ratio Sensor, ensure the wiring harness is routed away from excessive heat sources and moving parts. Use proper torque specifications for the 0.708-inch thread diameter to avoid damage. This sensor is designed for specific fitment, so verify compatibility with your Ford or Lincoln model before installation. It is recommended to use anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain compliance with emissions regulations and supports the longevity of your vehicle’s engine management system.