Denso 234-4436 Oxygen Sensor - Downstream Right or Upstream

Denso OE Style Oxygen Sensor 234-4436

Denso 234-4436 is an OE Style heated oxygen sensor built for direct replacement in select Hyundai and Kia applications. It is engineered for a specific fit, with a 4-wire design, threaded mounting, and a 14.80-inch wiring harness for the correct factory-style connection.

This Denso oxygen sensor is made to OE standards for accurate exhaust feedback and consistent engine management. The aluminum oxide trap layer helps protect the ceramic sensing element from silicone and lead contamination, supporting stable performance and long service life.

Key Features

• OE Style replacement oxygen sensor for direct-fit service
• Heated sensor design for faster operating response
• Specific fit with 4-wire configuration and male connector
• Threaded mounting with 0.708-inch thread diameter
• 14.80-inch wiring harness length
• Built to strict OE standards for factory-style replacement
• Aluminum oxide trap layer helps protect the sensing element

Product Details

Denso 234-4436 is designed for vehicles that require an upstream or downstream right oxygen sensor in the listed applications. It is a direct replacement for select 1999-2006 Hyundai Sonata, 2001-2006 Hyundai Santa Fe, 2001 Hyundai XG300, 2001-2006 Kia Magentis, and 2001-2006 Kia Optima applications. This part cross-references Bosch (e.g., 13753, 15033) for the same application.

As an OE Style part, this sensor is intended to match factory fitment and electrical configuration, helping maintain proper exhaust monitoring and fuel control. The Denso 234-4436 part number is commonly searched by buyers looking for a direct-fit oxygen sensor for Hyundai Sonata and Kia Optima service work.

What This Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel feedback from a worn sensor
• Reduced fuel economy caused by slow sensor response
• Rough idle or drivability issues tied to exhaust feedback
• Emissions test failures caused by sensor degradation

Installation Notes

Verify the sensor position before ordering: this part is listed for upstream and downstream right locations depending on the vehicle application. Confirm the 4-wire connector, threaded mounting, and harness length against the original sensor before installation. For best results, compare the old unit to the Denso 234-4436 part number and connector style before replacement.

Quality Assurance

Denso manufactures and tests this OE Style oxygen sensor to strict original-equipment standards. The design focuses on exact replacement fit, stable sensor output, and protection against contamination that can shorten sensor life.