Denso 234-4199 Oxygen Sensor - Downstream Left

Denso OE Style Oxygen Sensor 234-4199

Denso 234-4199 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for downstream left applications on select Hyundai and Kia vehicles, including the Hyundai Santa Fe, Hyundai XG350, Kia Amanti, and Hyundai XG350 from 02/03.

Key Features

• Heated oxygen sensor with specific fitment
• 4-wire design with male connector
• Threaded mounting type with 0.708 in. thread diameter
• 20.87 in. wiring harness length
• OE Style replacement for direct application matching
• Built with Denso’s aluminum oxide trap layer to help protect the sensing element from silicone and lead contamination

OE Style Construction

Denso’s OE Style line is built to match original equipment dimensions and electrical requirements for direct replacement service. The 234-4199 oxygen sensor is precision built for the specified downstream left location, helping maintain proper exhaust feedback on the 2003-2006 Hyundai Santa Fe, 2004-2006 Kia Amanti, and 2004-2005 Hyundai XG350. This part number, 234-4199, is also listed for the 2003 Hyundai XG350 from 02/03.

This part cross-references Bosch 13774 and NTK 25162 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel feedback from a worn downstream sensor
• Reduced fuel economy caused by inaccurate exhaust readings
• Slow sensor response after heat cycling and age
• Fitment issues from a non-specific replacement sensor

Installation Notes

Verify the downstream left position before installation and confirm the threaded mounting and 4-wire connector match the original sensor. The 20.87 in. harness length and male connector are part of the OE-style configuration, so routing and connector orientation should be checked against the factory layout. Use the vehicle’s exact year and model application for the Hyundai Santa Fe, Kia Amanti, or Hyundai XG350 before replacement.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for replacement accuracy, fit, and durability. The sensor’s contamination-resistant trap layer is part of the product design to support long service life in demanding exhaust conditions.