Denso 234-4239 Oxygen Sensor - Downstream Left, Upstream or Upstream Right

Reliable Oxygen Sensor for Hyundai and Kia Vehicles

The Denso OE Style Oxygen Sensor 234-4239 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 17.48-inch wiring harness length for accurate fitment and installation.

• Heated oxygen sensor for faster response times
• Specific fit for Hyundai and Kia models including Elantra, Forte, Genesis, and more
• Threaded mounting type with 0.708-inch thread diameter
• 17.48-inch wiring harness length with 4 wires and male connector
• Part number 234-4239 for easy identification and replacement

About the Denso OE Style Product Line

The OE Style line from Denso offers oxygen sensors engineered to meet original equipment specifications. This ensures compatibility and reliable performance for emission control systems in vehicles like the Hyundai Elantra and Kia Soul. The 234-4239 sensor maintains factory standards for fit, function, and durability, making it a suitable replacement part for maintaining vehicle emissions compliance.

Detailed Product Description

This Denso oxygen sensor 234-4239 is a heated sensor designed to provide accurate air-fuel mixture readings to the engine control unit. The 4-wire configuration includes heating elements that reduce sensor warm-up time, improving fuel efficiency and reducing emissions. The sensor’s 0.708-inch threaded mounting and 17.48-inch wiring harness length ensure a secure and precise fit in specific Hyundai and Kia models such as the Borrego, Elantra GT, Forte5, Genesis, and Veloster.

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 data
• Increased vehicle emissions failing emissions tests
• Engine performance problems such as rough idling or hesitation
• Failed oxygen sensor diagnostics in Hyundai and Kia vehicles

Installation Notes and Tips

When installing the Denso 234-4239 oxygen sensor, ensure the engine is cool to avoid burns. Use a proper oxygen sensor socket for removal and installation to prevent damage to the sensor or wiring. Verify the connector gender matches the vehicle harness (male connector) and confirm the wiring harness length is sufficient for your specific model. Follow vehicle manufacturer torque specifications for the threaded mounting to ensure a secure fit without over-tightening.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This ensures reliable performance and durability in emission control applications. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship.