Denso 234-4606 Oxygen Sensor - Upstream or Upstream Rear

Reliable Oxygen Sensor for Ford, Kia, Mazda, and Mercury Vehicles

The Denso OE Style Oxygen Sensor 234-4606 is designed to provide precise emissions control for specific vehicle models including the Ford Escort, Mazda Miata, and Kia Sephia. This heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions compliance.

• Heated sensor type for faster response times
• Specific fit for Ford, Kia, Mazda, and Mercury models
• 22.05-inch wiring harness length for proper installation
• Four-wire design with female connector for secure connection
• Threaded mounting type with 0.708-inch thread diameter

Detailed Features of the Denso OE Style Oxygen Sensor 234-4606

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response and reducing emissions during cold starts. The 22.05-inch wiring harness length provides sufficient reach for clean and secure routing in the engine bay. With a four-wire configuration and female connector, the sensor ensures reliable electrical connections and compatibility with the vehicle’s wiring system. The threaded mounting type with a 0.708-inch diameter allows for straightforward installation in the exhaust system.

About the Denso OE Style Product Line

The OE Style line from Denso is engineered to meet original equipment specifications, offering a direct replacement for factory-installed parts. This ensures that the 234-4606 oxygen sensor maintains the same fit, form, and function as the original sensor in Ford Escort, Mazda Miata, Kia Sephia, and other compatible models. The OE Style line focuses on quality and precision to support proper emissions control and engine management.

Common Applications and Issues Addressed

• Helps correct inaccurate air-fuel mixture readings
• Reduces rough idling and engine hesitation
• Prevents increased emissions and failed emissions tests
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by optimizing combustion

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid burns. Use the correct tools to remove the old sensor and install the Denso 234-4606 oxygen sensor securely by threading it into the exhaust port. Verify the wiring harness length of 22.05 inches is sufficient for your vehicle’s routing needs. Confirm the female connector matches the vehicle’s wiring harness for a proper electrical connection.

Quality Assurance and Warranty

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