Denso 234-4193 Oxygen Sensor - Downstream Left or Upstream Left

Denso OE Style Oxygen Sensor 234-4193

Denso 234-4193 is an OE Style heated oxygen sensor built for exact replacement on select Hyundai and Kia applications. It is engineered for a specific fit and uses a threaded mounting design with a 4-wire male connector for direct replacement service.

Key Features

• OE Style replacement oxygen sensor for emission control service
• Heated sensor design for faster operating response
• Specific fit for direct application matching
• 4-wire configuration with male connector
• Threaded mounting type with 0.708 in. thread diameter
• 18.11 in. wiring harness length
• Built with Denso’s aluminum oxide trap layer to help protect the sensing element from silicone and lead contamination

Product Details

This Denso oxygen sensor is designed for vehicles that require precise air-fuel feedback for engine management and emissions control. The OE Style construction supports accurate replacement fitment on 2002-2010 Hyundai and Kia models, including the Hyundai Tucson, Santa Fe, Sonata, and Tiburon, as well as the Kia Sportage, Magentis, and Optima. Denso 234-4193 is a direct-fit solution for upstream left and downstream left positions where listed, helping restore proper sensor response in the exhaust stream.

This part cross-references Bosch (e.g., 13446, 13466) for the same application.

Vehicle Fitment

• Fits 2005-2010 Kia Sportage, Upstream Left
• Fits 2005-2010 Kia Sportage, Downstream Left
• Fits 2005-2009 Hyundai Tucson, Upstream Left
• Fits 2005-2009 Hyundai Tucson, Downstream Left
• Fits 2003-2008 Hyundai Tiburon, Downstream Left
• Fits 2005-2006 Hyundai Santa Fe, Upstream Left
• Fits 2003-2006 Hyundai Santa Fe, Downstream Left
• Fits 2003-2006 Kia Magentis, Downstream Left
• Fits 2003-2006 Kia Optima, Downstream Left
• Fits 2003-2005 Hyundai Sonata, Downstream Left
• Fits 2002 Hyundai Sonata, Downstream Left, From 08/16/02
• Fits 2002 Kia Magentis, Downstream Left, From 07/24/02
• Fits 2002 Kia Optima, Downstream Left, From 07/24/02

Installation Notes

Verify the sensor position, connector style, wire count, and thread size before installation. Match the listed upstream left or downstream left location exactly, and confirm the vehicle build date for 2002 Sonata, Magentis, and Optima applications. Inspect the exhaust bung threads and wiring routing before tightening the sensor into place.

Quality Assurance

Denso manufactures and tests this OE Style oxygen sensor to OE-level standards for replacement accuracy and consistent performance. The sensor is precision built for first-time fitment and uses contamination protection at the sensing element to support long service life.