Denso 234-4116 Oxygen Sensor - Downstream or Upstream

Denso OE Style Oxygen Sensor 234-4116

Denso 234-4116 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for Mitsubishi Eclipse Cross, Outlander, RVR, Lancer, and Outlander Sport applications where accurate exhaust feedback and stable sensor response matter.

The OE Style line is designed to match factory fitment and performance expectations. Denso uses a precision-built design with an aluminum oxide trap layer that helps protect the ceramic element from silicone and lead contamination, supporting consistent engine operation and long service life.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for direct replacement
• 4-wire configuration with female connector
• Threaded mounting type with 0.708 in. thread diameter
• 36.10 in. wiring harness length
• OE Style construction for factory-style fit and function
• Cross-references Bosch 18074 and Delphi ES20414 for the same application

Detailed Description

This Denso oxygen sensor, part number 234-4116, is built for downstream and upstream Mitsubishi applications listed below. It is a direct-fit emission control sensor for drivers replacing a worn or slow-responding sensor on a Mitsubishi Eclipse Cross, Outlander, RVR, Lancer, or Outlander Sport. The OE Style design supports accurate installation and factory-matched sensor placement.

Compatible With 2022-2023 Mitsubishi Eclipse Cross, downstream; 2018-2020 Mitsubishi Eclipse Cross, downstream; 2016-2020 Mitsubishi Outlander, downstream; 2016 Mitsubishi RVR, downstream; 2008-2015 Mitsubishi Lancer, upstream; 2015 Mitsubishi Lancer, downstream; 2014-2015 Mitsubishi Outlander, downstream; 2014 Mitsubishi Outlander Sport, downstream; 2012-2013 Mitsubishi Lancer, downstream; 2011-2012 Mitsubishi Lancer, downstream; 2009 Mitsubishi Lancer, downstream; 2011-2012 Mitsubishi Outlander Sport, downstream; 2008-2010 Mitsubishi Lancer, downstream; 2008-2010 Mitsubishi Outlander, upstream; and 2009 Mitsubishi Lancer, downstream.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough or inconsistent air-fuel feedback from a failing sensor
• Reduced fuel economy caused by inaccurate exhaust readings
• Slow sensor response during closed-loop operation
• Replacement needs for Mitsubishi Eclipse Cross, Outlander, Lancer, RVR, or Outlander Sport exhaust monitoring

Installation Notes and Tips

Verify the sensor position, connector style, wire count, and thread size before installation. This part uses a threaded mounting design and a female connector, so matching the original harness and exhaust location is important. Confirm whether your vehicle requires an upstream or downstream sensor before ordering Denso 234-4116.

Quality Assurance

Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards. The design is precision built for exact replacement fitment, and the protective trap layer is intended to help resist contamination that can shorten sensor life.