Denso 234-4463 Oxygen Sensor - Upstream Left or Upstream Right

Denso OE Style Oxygen Sensor 234-4463

Denso 234-4463 is an OE-style heated oxygen sensor built for direct replacement in select Hyundai and Kia applications. It is engineered for exact fit and accurate exhaust feedback, helping maintain proper air-fuel control in vehicles such as the Hyundai Santa Fe, Hyundai Santa Fe XL, Kia Sorento, and Hyundai Genesis.

Key Features

• Heated oxygen sensor with specific-fit design
• 4-wire configuration with male connector
• Threaded mounting type for direct installation
• 16.30 in. wiring harness length
• 0.708 in. thread diameter
• OE-style replacement built to match factory fit and function

OE Style Construction

The Denso OE Style line focuses on direct replacement parts that match original equipment dimensions and connection points. Part number 234-4463 uses Denso’s precision-built sensor design and protective aluminum oxide trap layer to help shield the ceramic element from silicone and lead contamination. That construction supports stable sensor response, consistent engine management input, and long service life in demanding exhaust conditions.

This part cross-references Bosch 18044 for the same application.

Vehicle Fitment

• Fits 2013-2019 Hyundai Santa Fe XL, Upstream Right, OE Style
• Fits 2010-2018 Hyundai Santa Fe, Upstream Right, OE Style
• Fits 2016-2018 Kia Sorento, Upstream Right, OE Style
• Fits 2011-2014 Kia Sorento, Upstream Right, OE Style
• Fits 2012-2015 Hyundai Genesis, Upstream Left, OE Style

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings
• Reduced fuel economy caused by a failing upstream sensor
• Slow sensor response or intermittent exhaust feedback
• Driveability issues tied to inaccurate engine management input

Installation Notes

Confirm the upstream left or upstream right position before ordering, since this sensor is application-specific. Match the connector style, wire count, and threaded mounting dimensions to the original part on the vehicle. For Hyundai Santa Fe, Hyundai Santa Fe XL, Kia Sorento, and Hyundai Genesis applications, verify the exact engine and sensor location against the existing OE unit before installation.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for fit, function, and durability. The 234-4463 is built as a direct replacement part for the listed Hyundai and Kia applications, with attention to first-time fit and consistent sensor performance.