Denso 234-4117 Oxygen Sensor - Upstream or Upstream Rear

Overview of the Denso OE Style Oxygen Sensor 234-4117

The Denso OE Style Oxygen Sensor 234-4117 is designed specifically for select Kia, Mazda, and Suzuki models. This heated oxygen sensor features a threaded mounting type and a 12.01-inch wiring harness, ensuring precise fitment and reliable performance in emission control systems.

• Heated oxygen sensor for faster activation
• Specific fit for Kia 626, Mazda Forenza, and Suzuki Rio
• 12.01-inch wiring harness length for optimal installation
• Threaded mounting with 0.708-inch thread diameter
• Four-wire design with male connector for secure connection

Detailed Features and Specifications

This Denso oxygen sensor is part of the OE Style product line, which focuses on delivering original equipment quality and fitment. The heated sensor type allows for quicker warm-up times, improving emission control efficiency shortly after engine start. With a 12.01-inch wiring harness, the sensor provides adequate length for proper routing and connection without excess slack. The four-wire configuration supports both the sensor signal and heater circuit, while the male connector ensures compatibility with factory wiring harnesses. The threaded mounting type with a 0.708-inch diameter allows for secure installation in the exhaust system.

Compatible Vehicles and Applications

This oxygen sensor is compatible with specific vehicle models, including:

• Kia 626
• Mazda Forenza
• Suzuki Rio

It is designed to replace the original oxygen sensor in these vehicles, maintaining proper air-fuel mixture readings and supporting emission control compliance.

Common Issues Addressed by the Oxygen Sensor 234-4117

• Incorrect air-fuel mixture readings causing poor fuel economy
• Check engine light triggered by faulty oxygen sensor signals
• Increased emissions due to sensor malfunction
• Engine performance issues related to improper sensor feedback
• Failed emissions tests linked to sensor degradation

Installation Notes and Tips

When installing the Denso OE Style Oxygen Sensor 234-4117, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the wiring harness length and connector gender match the factory setup. Properly torque the sensor to manufacturer specifications to prevent exhaust leaks. It is recommended to inspect the wiring and connectors for damage before installation.

Quality Assurance and Warranty

Denso's OE Style line is engineered to meet or exceed original equipment standards, providing reliable performance and durability. This oxygen sensor undergoes rigorous testing to ensure consistent operation within emission control systems. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary.