Denso 234-5055 Air / Fuel Ratio Sensor - Upstream

Overview of the Denso OE Style Air/Fuel Ratio Sensor

The Denso OE Style Air/Fuel Ratio Sensor 234-5055 is designed specifically for select Hyundai and Kia models, including the Accent, Rio, Soul, and Veloster. This heated sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for Hyundai Accent, Rio, Soul, and Kia Veloster
• 23.23-inch wiring harness length for precise installation
• Five-wire configuration with male connector
• Thread diameter of 0.711 inches for secure mounting
• Regular grade type for standard OE replacement

Detailed Product Description

The Denso 234-5055 air/fuel ratio sensor is engineered to meet original equipment specifications, providing reliable and consistent sensor performance. Featuring a heated sensor element, it quickly reaches operating temperature to deliver accurate readings of the air-fuel mixture. The 23.23-inch wiring harness length and five-wire setup with a male connector ensure compatibility and ease of installation in the specified Hyundai and Kia vehicles. The thread diameter of 0.711 inches allows for a secure and proper fit, maintaining the integrity of the emission control system.

This sensor is part of Denso's OE Style product line, which focuses on delivering components that closely match the original equipment in form, fit, and function. The OE Style line is designed to provide a direct replacement solution for emission control sensors, ensuring that vehicles maintain compliance with emission standards and engine efficiency.

Common Applications and Issues Addressed

• Restores accurate air/fuel ratio readings for improved fuel efficiency
• Resolves engine performance issues related to faulty sensors
• Helps reduce emissions by maintaining proper sensor function
• Prevents check engine light triggers caused by sensor failure
• Supports smooth engine operation and drivability

Installation Notes and Tips

• Ensure compatibility with Hyundai Accent, Rio, Soul, and Kia Veloster models before installation
• Handle the sensor carefully to avoid damage to the heated element and wiring harness
• Use proper tools to install the sensor with the 0.711-inch thread diameter securely
• Verify connector type matches the vehicle’s wiring harness (male connector)
• Follow vehicle manufacturer torque specifications during installation

Quality Assurance and Warranty

Denso OE Style sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 234-5055 may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Always consult the warranty information provided with the product or from the vehicle manufacturer for exact terms.