Denso 234-4347 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Hummer H3 Emission Control

The Denso OE Style Oxygen Sensor 234-4347 is designed specifically for the Hummer H3, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a female connector for a secure fit.

• Heated oxygen sensor for accurate emissions monitoring
• Specific fit for Hummer H3 models
• 9.06-inch wiring harness length for proper installation
• Threaded mounting with 0.708-inch thread diameter
• Four-wire design with female connector for reliable connection

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 performance that align closely with factory-installed parts. The 234-4347 sensor maintains the quality and fit expected from Denso’s OE Style range, providing a direct replacement solution for emission control systems.

Detailed Product Description

The Denso 234-4347 oxygen sensor is a heated sensor designed to provide accurate readings of oxygen levels in the exhaust gases of the Hummer H3. Its four-wire configuration supports both the sensor signal and the heating element, allowing for quicker sensor activation and improved fuel efficiency. The 9.06-inch wiring harness length offers flexibility during installation, while the female connector ensures a secure and corrosion-resistant connection. The threaded mounting type with a 0.708-inch diameter allows for straightforward installation in the designated exhaust port.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel mixture for efficient combustion
• Reduces harmful emissions by providing accurate feedback to the engine control unit
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers related to oxygen sensor faults
• Improves fuel economy by ensuring optimal sensor operation

Installation Notes and Tips

When installing the Denso 234-4347 oxygen sensor on a Hummer H3, ensure the sensor is threaded securely without over-tightening to avoid damage. Verify the female connector is properly seated to prevent electrical issues. It is recommended to inspect the wiring harness for any damage before installation and to use anti-seize compound on the threads if specified by the vehicle manufacturer.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 234-4347 may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.