Denso 234-4742 Oxygen Sensor - Upstream Left

Overview of Denso OE Style Oxygen Sensor 234-4742

The Denso OE Style Oxygen Sensor 234-4742 is designed specifically for Mitsubishi Montero and Montero Sport models. This heated oxygen sensor ensures accurate air-fuel mixture readings to optimize engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for Mitsubishi Montero and Montero Sport
• Threaded mounting type with 0.708 inch thread diameter
• 29.92 inch wiring harness length with 4 wires
• Male connector for secure electrical connection

Detailed Features and Specifications

This oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. The 29.92-inch wiring harness length provides ample reach for installation in the engine bay, while the 4-wire configuration supports both sensor signal and heater circuit. The sensor’s threaded mounting type with a 0.708-inch diameter ensures a secure and precise fit in the exhaust system. The male connector design facilitates a reliable electrical connection, minimizing the risk of signal loss or corrosion.

About the Denso OE Style Product Line

The OE Style line from Denso is engineered to meet original equipment specifications, providing a direct replacement for factory-installed parts. This ensures compatibility and performance consistent with the original sensor installed on Mitsubishi Montero and Montero Sport vehicles. The OE Style sensors are designed to maintain proper emissions control and engine management system function without modification.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel ratio
• Helps resolve rough idling and engine hesitation
• Reduces increased emissions and failed emissions tests
• Corrects poor fuel economy caused by faulty sensors
• Eliminates check engine light codes related to oxygen sensor failure

Installation Notes and Tips

When installing the Denso 234-4742 oxygen sensor, ensure the engine and exhaust system are cool to avoid burns. Use appropriate tools to avoid damaging the threaded sensor or connector. Verify the wiring harness length and connector gender match the vehicle’s factory harness for a proper fit. It is recommended to apply anti-seize compound on the threads to facilitate future removal.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This part is designed to provide reliable performance and durability in emission control applications. Warranty coverage details should be confirmed with the supplier or manufacturer.