Denso 234-5113 Air / Fuel Ratio Sensor

Denso OE Style Air/Fuel Ratio Sensor

Denso 234-5113 is an OE Style heated air/fuel ratio sensor built for direct replacement on specific Ford, Lincoln, Mazda, and Mercury applications. It is engineered for exact fit and consistent signal response, making it a practical choice for upstream sensor service on vehicles such as the Ford F-150, Ford Explorer, and Lincoln Navigator.

This part cross-references Motorcraft (e.g., DY1120, DY1165) for the same application.

Key Features

• Heated air/fuel ratio sensor for upstream exhaust monitoring
• Specific fit design for direct replacement on listed applications
• 5-wire configuration with male connector
• Wiring harness length: 16.73
• Thread diameter: 0.711
• OE Style construction for factory-style fit and function

Product Details

Denso 234-5113 is manufactured and tested to OE-level standards, with precision-built components intended to match the original sensor location and connection style. The OE Style line focuses on replacement parts that align with factory fitment expectations, which helps simplify service on upstream sensor locations in Ford Expedition, Ford F-150, Ford Explorer, Lincoln Navigator, and related models. For buyers searching for a Denso 234-5113 air/fuel ratio sensor or an OE style upstream sensor for Ford applications, this part provides a direct replacement option with the correct connector and harness layout.

Vehicle Fitment

• Fits 2009-2020 Ford Expedition, Upstream Right.
• Fits 2016-2020 Lincoln Navigator, Upstream Right.
• Fits 2009-2014 Lincoln Navigator, Upstream Right.
• Fits 2016-2019 Ford Explorer, Upstream.
• Fits 2014-2019 Ford Fiesta, Upstream.
• Fits 2016-2019 Ford Fiesta, Upstream, 6-Pin; OE Style.
• Fits 2010-2019 Ford Flex, Upstream.
• Fits 2010-2019 Ford Taurus, Upstream.
• Fits 2010-2019 Lincoln MKT, Upstream.
• Fits 2009-2016 Ford E-350 Super Duty, Upstream.
• Fits 2009-2016 Ford F-150, Upstream Right.
• Fits 2014-2016 Ford Transit Connect, Upstream.
• Fits 2015-2016 Lincoln MKC, Upstream.
• Fits 2010-2016 Lincoln MKS, Upstream.
• Fits 2013-2015 Ford E-350 Super Duty, Upstream Left.
• Fits 2014-2015 Ford Explorer, Upstream Right.
• Fits 2014-2015 Ford Explorer, Upstream Left.
• Fits 2009-2014 Ford E-150, Upstream.
• Fits 2009-2014 Ford E-250, Upstream.
• Fits 2014 Ford Fiesta, Upstream, 5-Wire Sensor; OE Style.
• Fits 2012-2014 Ford Focus, Upstream.
• Fits 2010-2014 Ford Fusion, Upstream.
• Fits 2012-2014 Ford Mustang, Upstream.
• Fits 2013 Ford C-Max, Upstream.
• Fits 2013 Ford Explorer, Upstream Rear.
• Fits 2013 Ford Explorer, Upstream Front.
• Fits 2009-2012 Ford Escape, Upstream.
• Fits 2011-2012 Lincoln MKZ, Upstream.
• Fits 2009-2011 Mercury Mariner, Upstream.
• Fits 2010-2011 Mercury Milan, Upstream.
• Fits 2009-2010 Ford F-150, Upstream.
• Fits 2009-2010 Mazda Tribute, Upstream.

Common Issues This Sensor Can Address

• Check engine light related to upstream air/fuel ratio sensor performance
• Rough idle or unstable fuel control caused by a failing sensor signal
• Incorrect air-fuel mixture readings affecting drivability
• Emissions test failure tied to sensor response or heater circuit faults
• Hard starting or hesitation when the original sensor is worn

Installation Notes

Confirm the connector style, wire count, and upstream position before installation. This is a specific-fit sensor, so match the vehicle application and sensor location exactly to the catalog listing. Inspect the exhaust bung threads and wiring routing before tightening the sensor, and verify that the harness length and connector reach the factory mounting point without strain.

Quality Assurance

Denso manufactures this OE Style sensor to strict original-equipment standards and tests each component for replacement accuracy and first-time fit. The Denso 234-5113 is built for direct replacement service on the listed Ford, Lincoln, Mazda, and Mercury applications.