Denso 234-4191 Oxygen Sensor - Upstream or Upstream Right

Reliable Oxygen Sensor for Hyundai and Kia Vehicles

The Denso OE Style 234-4191 oxygen sensor is designed specifically for select Hyundai and Kia models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a 15.35-inch wiring harness for straightforward installation.

• Heated oxygen sensor for faster response times
• Specific fit for Hyundai and Kia models including Sonata, Optima, and Santa Fe
• Threaded mounting with 0.708-inch thread diameter
• 15.35-inch wiring harness length with 4 wires and male connector
• Part number 234-4191 for accurate replacement

About the Denso OE Style Product Line

The OE Style line from Denso offers direct replacement parts engineered to meet original equipment specifications. The 234-4191 oxygen sensor maintains factory-level quality and fitment, providing reliable emission control for Hyundai and Kia vehicles. This product line focuses on delivering components that match the original sensor's design and performance characteristics.

Detailed Product Description

This Denso oxygen sensor 234-4191 is a heated sensor designed to reduce warm-up time and improve fuel efficiency by providing accurate oxygen level readings to the engine control unit. It features a 15.35-inch wiring harness with four wires and a male connector, ensuring compatibility with the vehicle's existing wiring system. The threaded mounting type with a 0.708-inch diameter allows for secure installation in the exhaust system. This sensor is a specific fit for Hyundai Magentis, Sonata, Santa Fe, Tiburon, and Kia Optima, Sportage, and Tucson models, ensuring proper function and emission compliance.

Common Issues Addressed by This Oxygen Sensor

• Check engine light triggered by faulty oxygen sensor readings
• Poor fuel economy due to incorrect air-fuel mixture
• Increased emissions and failed emissions tests
• Engine performance problems such as rough idling or hesitation
• Delayed sensor response affecting engine control accuracy

Installation Notes and Tips

• Ensure the vehicle is cool before removing the old sensor to avoid burns
• Use appropriate tools for threaded sensor removal and installation
• Verify connector gender and wire count match the vehicle harness
• Do not over-tighten the sensor to prevent damage to threads
• Check for proper sensor wiring and secure connections after installation

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Using part number 234-4191 ensures compatibility and reliability for your Hyundai or Kia vehicle's emission control system.