Denso 234-4262 Oxygen Sensor - Downstream, Downstream Left or Upstream Left

Denso OE Style Oxygen Sensor 234-4262

Denso 234-4262 is a specific-fit heated oxygen sensor built for OE-style replacement on select Hyundai and Kia applications. It is engineered for accurate exhaust feedback, stable engine management, and a first-time fit on downstream and upstream left positions where listed.

Key Features

• Heated oxygen sensor for faster operating readiness
• Specific fit design for direct replacement on listed vehicles
• 4-wire configuration with male connector
• Threaded mounting with 0.708 in. thread diameter
• 9.21 in. wiring harness length
• OE Style construction for Hyundai Genesis, Hyundai Equus, and Kia K900 applications

OE Style Design Details

Denso’s OE Style line is built to match original equipment fit and function for the listed applications. The sensor uses precision-built components and an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting consistent signal output and long service life. This part cross-references Bosch 18077 for the same application.

Fitment

• Fits 2011-2016 Hyundai Equus, Downstream Left
• Fits 2011 Hyundai Equus, Upstream Left
• Fits 2012-2015 Hyundai Genesis, Downstream Left
• Fits 2009-2011 Hyundai Genesis, Downstream
• Fits 2015 Kia K900, Downstream Left
• Fits 2016 Kia K900, Downstream Left

Common Uses

• Replacing a failed oxygen sensor that triggers check engine light codes
• Restoring air-fuel ratio feedback for Hyundai Genesis and Hyundai Equus engines
• Addressing poor fuel economy caused by inaccurate exhaust readings
• Correcting drivability issues related to slow or unstable sensor response
• Replacing a worn downstream left or upstream left sensor on listed Kia K900 and Hyundai applications

Installation Notes

Verify the connector style, wire count, mounting type, and sensor position before installation. This is a specific-fit threaded sensor, so confirm the vehicle uses the listed downstream left, upstream left, or downstream location before ordering. For best results, inspect the harness routing and exhaust threads during replacement and clear any stored diagnostic trouble codes after installation.

Quality Assurance

Denso manufactures and tests these oxygen sensors to OE standards for fit, signal accuracy, and durability. The OE Style design is intended to deliver the correct part and the correct fit for the listed Hyundai and Kia applications.