Denso 234-4173 Oxygen Sensor - Upstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4173

The Denso OE Style Oxygen Sensor 234-4173 is designed specifically for select Mercedes-Benz models, including the C43 AMG, C280, CLK320, and CLK430. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

• Heated sensor type for faster response times
• Specific fit for Mercedes-Benz C43 AMG, C280, CLK320, and CLK430
• Threaded mounting type with 0.708 thread diameter
• Four-wire configuration with a female connector
• Wiring harness length of 25.79 inches for precise installation

Detailed Features and Specifications

The Denso 234-4173 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. Its four-wire design supports both the sensor signal and heater circuit, ensuring reliable performance. The sensor is mounted using a threaded connection with a 0.708-inch diameter, providing a secure and stable fit. The female connector and 25.79-inch wiring harness length facilitate straightforward integration with the vehicle's existing wiring system.

About the Denso OE Style Product Line

The OE Style line from Denso focuses on delivering replacement parts that closely match original equipment specifications. This oxygen sensor is engineered to meet the exact fit and function requirements of the original sensor installed in Mercedes-Benz vehicles. The OE Style designation ensures compatibility and performance consistent with factory standards, making it a suitable choice for maintaining vehicle emissions systems.

Common Applications and Problem Resolution

• Restores accurate oxygen sensing for proper air-fuel mixture control
• Helps resolve check engine light issues related to oxygen sensor faults
• Improves fuel economy by providing precise exhaust gas readings
• Reduces harmful emissions by ensuring proper catalytic converter function
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

Installation of the Denso 234-4173 oxygen sensor requires a threaded mounting point on compatible Mercedes-Benz models. Ensure the sensor is tightened to manufacturer torque specifications to avoid leaks or damage. The female connector and four-wire harness should be connected securely to the vehicle’s wiring harness. It is recommended to inspect the wiring and connector for corrosion or damage before installation.

Quality Assurance and Warranty

Denso oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The OE Style 234-4173 sensor is designed to provide reliable operation over the life of the vehicle’s emissions system. Warranty coverage details should be confirmed with the parts provider or manufacturer documentation.