Denso 234-4643 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Dodge, Mitsubishi, and Plymouth Vehicles

The Denso OE Style 234-4643 oxygen sensor is designed to provide accurate emissions control for specific vehicle models. Engineered with a heated sensor and a threaded mounting type, this oxygen sensor ensures precise air-fuel mixture readings for optimal engine performance.

• Heated oxygen sensor for faster response times
• Specific fit for Dodge Colt, Mitsubishi Eclipse, Laser, and Mirage
• 27.56-inch wiring harness length for proper installation
• Four-wire design with male connector for secure connection
• Threaded mounting with 0.708-inch thread diameter

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering parts that meet original equipment specifications. The 234-4643 oxygen sensor is built to match the fit, form, and function of the factory-installed sensor, ensuring compatibility and reliable performance in emission control systems.

Detailed Product Description

This Denso oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 27.56-inch wiring harness length provides flexibility during installation, while the four-wire configuration supports both the sensor signal and heater circuit. Designed with a male connector and a threaded mounting type with a 0.708-inch diameter, this sensor fits securely in the exhaust system of select Dodge, Mitsubishi, and Plymouth models.

Common Applications and Issues Addressed

• Helps correct inaccurate air-fuel mixture readings
• Reduces engine misfires caused by faulty oxygen sensors
• Improves fuel economy by optimizing combustion
• Prevents increased emissions and failed emissions tests
• Resolves check engine light triggers related to oxygen sensor faults

Installation Notes and Tips

Ensure the vehicle is cool before removing the old sensor to avoid burns. Use the correct tools to avoid damaging the threaded mounting. Verify the connector gender matches the vehicle harness for a secure fit. Follow vehicle-specific torque specifications when installing the sensor to prevent leaks or damage.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards, ensuring durability and reliable performance. While specific warranty details for part number 234-4643 may vary, Denso products typically come with a limited warranty against defects in materials and workmanship.