HomeEmission Control > SensorsDenso 234-5068 Air / Fuel Ratio Sensor - Upstream
Part #: 234-5068

Denso 234-5068 Air / Fuel Ratio Sensor - Upstream

OE Style, Upstream
⚙️ 30 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream
🚗Fitment: Ford and Lincoln, Fusion, MKZ, C-Max, Focus, and Escape
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Overview of the Denso OE Style Air/Fuel Ratio Sensor 234-5068

The Denso OE Style Air/Fuel Ratio Sensor 234-5068 is designed specifically for select Ford and Lincoln vehicles, including the C-Max, Escape, Focus, Fusion, and MKZ models. This heated sensor ensures accurate air-to-fuel mixture readings, contributing to optimal engine performance and emissions control.

  • Heated sensor type for faster response times
  • Specific fit for Ford and Lincoln vehicles
  • 18.27-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

The Denso 234-5068 air/fuel ratio sensor is engineered to provide accurate feedback to the engine control unit by measuring the oxygen content in the exhaust gases. Featuring a heated sensor element, it reaches operating temperature quickly, improving fuel efficiency and reducing emissions. The 18.27-inch wiring harness length allows for proper routing and connection within the engine bay. This sensor includes five wires and a male connector, ensuring compatibility with the vehicle’s existing wiring harness. The thread diameter of 0.711 inches matches OEM specifications for a secure and leak-free installation.

This sensor is a specific fit part, designed to meet the exact requirements of Ford and Lincoln models such as the C-Max, Escape, Focus, Fusion, and MKZ. Using the correct sensor helps maintain engine performance and emission standards.

About the Denso OE Style Product Line

The Denso OE Style product line focuses on delivering parts that closely match original equipment specifications. The OE Style air/fuel ratio sensors are manufactured to meet or exceed OEM standards, ensuring proper fit, function, and durability. The 234-5068 sensor is part of this line, providing a reliable replacement option for vehicles requiring precise emission control components.

Common Applications and Issues Addressed

  • Helps resolve poor fuel economy caused by incorrect air/fuel mixture readings
  • Reduces rough idling and engine hesitation related to faulty sensors
  • Prevents increased emissions and failed emissions tests
  • Addresses check engine light triggers related to oxygen sensor faults
  • Improves overall engine performance and drivability

Installation Notes and Tips

  • Ensure the vehicle is compatible: Ford and Lincoln C-Max, Escape, Focus, Fusion, MKZ
  • Disconnect the battery before installation to avoid electrical shorts
  • Use proper tools to remove the old sensor and install the new one with the 0.711-inch thread diameter
  • Verify the wiring harness length of 18.27 inches is sufficient for your vehicle’s routing
  • Check the five-wire connector and ensure the male connector fits securely

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The 234-5068 air/fuel ratio sensor undergoes rigorous testing to comply with OEM specifications. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary.

BrandDenso
Part Number234-5068
PositionOE Style, Upstream
Connector GenderMale
Grade TypeRegular
Sensor TypeHeated
Thread Diameter0.711
Universal Or Specific FitSpecific
Wire Quantity5
Wiring Harness Length18.27

This part fits 30 vehicles. Search below:

YearMakeModelFuel TypePositionNotes
2020FordFusionELECTRIC/GASUpstreamOE Style
2020LincolnMKZELECTRIC/GASUpstreamOE Style
2019FordFusionELECTRIC/GASUpstreamOE Style
2019LincolnMKZELECTRIC/GASUpstreamOE Style
2018FordC-MaxUpstreamOE Style
2018FordFocusUpstreamOE Style
2018FordFusionELECTRIC/GASUpstreamOE Style
2018LincolnMKZELECTRIC/GASUpstreamOE Style
2017FordC-MaxUpstreamOE Style
2017FordFocusUpstreamOE Style
2017FordFusionELECTRIC/GASUpstreamOE Style
2017LincolnMKZELECTRIC/GASUpstreamOE Style
2016FordC-MaxUpstreamOE Style
2016FordEscapeUpstreamOE Style
2016FordFocusUpstreamOE Style
2016FordFusionELECTRIC/GASUpstreamOE Style
2016LincolnMKZELECTRIC/GASUpstreamOE Style
2015FordC-MaxUpstreamOE Style
2015FordEscapeUpstreamOE Style
2015FordFocusGASUpstreamOE Style
2015FordFocusFLEXUpstreamOE Style
2015FordFusionELECTRIC/GASUpstreamOE Style
2015LincolnMKZELECTRIC/GASUpstreamOE Style
2014FordC-MaxUpstreamOE Style
2014FordEscapeUpstreamOE Style
2014FordFusionELECTRIC/GASUpstreamOE Style
2014LincolnMKZELECTRIC/GASUpstreamOE Style
2013FordEscapeUpstreamOE Style
2013FordFusionELECTRIC/GASUpstreamOE Style
2013LincolnMKZELECTRIC/GASUpstreamOE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

17358

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.