Denso 234-4855 Oxygen Sensor - Downstream Right

Denso OE Style Oxygen Sensor 234-4855

Denso 234-4855 is an OE-style heated oxygen sensor built for direct replacement on select Hyundai and Kia applications. It is engineered for a specific fit and uses a 4-wire, threaded design with a male connector for straightforward sensor replacement.

For drivers searching for a downstream right oxygen sensor for Hyundai Azera, Sonata, Entourage, or Kia Sedona, Amanti, and Sorento, this Denso oxygen sensor is built to match the original application and connector style.

Key Features

• OE Style replacement oxygen sensor for exact-fit service
• Heated sensor design for faster operating response
• Specific fit application with 4-wire configuration
• Male connector and threaded mounting type
• Wiring harness length: 32.28 in.
• Thread diameter: 0.708 in.

Product Details

Denso 234-4855 is manufactured and tested to OE standards for replacement accuracy and consistent performance. The sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and fuel control over time. This part cross-references Hyundai 392103C200 and Kia 392103C200 for the same application.

Compatible With 2006-2011 Hyundai Azera, downstream right; 2007-2010 Hyundai Entourage, downstream right; 2006-2010 Hyundai Sonata, downstream right; 2006-2010 Kia Sedona, downstream right; 2007-2009 Kia Amanti, downstream right; and 2007-2009 Kia Sorento, downstream right. Denso 234-4855 is a direct-fit option for these OE-style applications.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn downstream sensor
• Reduced fuel economy caused by inaccurate exhaust feedback
• Slow sensor response after contamination or age-related wear
• Failed emissions inspection tied to sensor malfunction

Installation Notes and Tips

Confirm the downstream right location, connector style, wire count, and thread diameter before installation. Inspect the harness routing and connector condition on the vehicle before swapping in the new sensor. Because this is a specific-fit threaded sensor, proper thread engagement and secure connector seating are important for reliable operation.

Quality Assurance

Denso builds this OE Style oxygen sensor to strict original-equipment standards and tests each component for replacement accuracy and first-time fit. The design focuses on durability, contamination resistance, and consistent sensor output for the listed Hyundai and Kia applications.