Denso 234-4437 Oxygen Sensor - Downstream Right

Denso OE Style Oxygen Sensor 234-4437

Denso 234-4437 is an OE-style heated oxygen sensor built for exact replacement and first-time fit. It is specified for the downstream right position on 2007-2009 Hyundai Santa Fe models, making it a direct-match choice for emissions and fuel-control service.

The Denso OE Style line focuses on factory-style fit and sensor performance. This oxygen sensor uses a threaded mounting design, a male connector, 4-wire configuration, and a 19.76-inch wiring harness length to match the original layout on the vehicle.

Key Features

• Heated oxygen sensor for downstream right placement
• Specific-fit design for 2007-2009 Hyundai Santa Fe
• Threaded mounting type with 0.708-inch thread diameter
• 4-wire sensor with male connector
• 19.76-inch wiring harness length for OE-style routing
• Denso OE Style replacement part number 234-4437

OE Style Design and Sensor Protection

Denso’s OE Style oxygen sensors are manufactured and tested to OE standards for accurate replacement fitment and dependable operation. The sensor element uses an aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable engine management and long service life. For shoppers searching for a 2007-2009 Hyundai Santa Fe downstream right oxygen sensor, Denso 234-4437 provides a direct replacement format that matches the original application.

This part cross-references Bosch 15367 and NTK 25196 for the same application.

What This Oxygen Sensor Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback from the downstream sensor
• Reduced fuel economy caused by a worn sensor
• Emissions test failures tied to sensor response issues
• Corrosion or connector wear at the original downstream right sensor location

Installation Notes and Fitment

Fits 2007-2009 Hyundai Santa Fe, downstream right. Confirm the connector style, wire count, and threaded mounting location before installation. Use the vehicle’s original routing path for the 19.76-inch harness and verify the sensor is installed in the correct downstream position. Denso 234-4437 is a specific-fit replacement, so it should be matched to the listed application rather than used as a universal sensor.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE-style standards for exact replacement fitment and consistent performance. The design reflects Denso’s focus on precise application matching and sensor durability for the listed Hyundai Santa Fe models.