Denso 234-5714 Air / Fuel Ratio Sensor - Upstream

Reliable Air/Fuel Ratio Sensor for Hyundai and Kia Vehicles

The Denso OE Style 234-5714 air/fuel ratio sensor is designed specifically for select Hyundai and Kia models, including the Optima, Sonata, Santa Fe, Sorento, Sportage, and Tucson. This heated sensor ensures accurate monitoring of the air-to-fuel mixture, helping maintain optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for Hyundai and Kia models
• 16.14-inch wiring harness length for precise installation
• Five-wire configuration with male connector
• Thread diameter of 0.701 inches for secure mounting
• Regular grade type for standard performance requirements

About the Denso OE Style Product Line

The OE Style line from Denso offers replacement parts engineered to meet original equipment specifications. The 234-5714 air/fuel ratio sensor is part of this line, providing a direct fit and reliable function comparable to the factory-installed sensor. This ensures compatibility and consistent performance for your Hyundai or Kia vehicle.

Detailed Product Description

This Denso air/fuel ratio sensor features a heated sensor element that allows it to reach operating temperature quickly, improving the accuracy of air-fuel mixture readings. The 16.14-inch wiring harness length provides flexibility during installation, while the five-wire design supports precise signal transmission. The male connector and 0.701-inch thread diameter ensure a secure and proper fit in the designated sensor port. Designed specifically for models such as the Hyundai Sonata, Optima, Santa Fe, and Kia Sorento, Sportage, and Tucson, this sensor helps maintain efficient engine operation and emissions compliance.

Common Applications and Issues Addressed

• Helps correct rough idling and engine hesitation
• Improves fuel efficiency by optimizing air/fuel mixture
• Reduces emissions by providing accurate sensor data
• Prevents check engine light triggers related to sensor faults
• Supports proper catalytic converter function

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid injury. Disconnect the battery to prevent electrical shorts. The 16.14-inch wiring harness length allows for straightforward routing without excessive tension. Use appropriate tools to remove the old sensor and install the new one, making sure the 0.701-inch thread diameter matches the sensor port. Verify the male connector is securely attached to the vehicle’s wiring harness before completing the installation.

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet original equipment standards, ensuring reliable performance and durability. While specific warranty details for part number 234-5714 may vary, Denso typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.