Denso 234-4302 Oxygen Sensor - Downstream or Downstream Left

Overview of the Denso OE Style Oxygen Sensor 234-4302

The Denso OE Style Oxygen Sensor 234-4302 is designed specifically for select Infiniti and Nissan models, including the 350Z, FX35, FX45, G20, G35, M35, and M45. This heated oxygen sensor features a 14.57-inch wiring harness and a threaded mounting type for precise installation and reliable performance.

• Heated oxygen sensor for accurate emissions control
• Specific fit for Infiniti and Nissan vehicles
• 14.57-inch wiring harness length for optimal routing
• Four-wire design with male connector
• Threaded mounting with 0.708-inch thread diameter

Detailed Product Features and Specifications

The Denso 234-4302 oxygen sensor is engineered with a heated sensor element to provide faster response times and improved fuel efficiency. Its four-wire configuration ensures proper signal transmission and heater operation. The sensor’s 0.708-inch threaded mounting type allows for secure installation in the exhaust system. The 14.57-inch wiring harness length offers flexibility during installation, reducing strain on the connector and wiring. This oxygen sensor is a specific fit for Infiniti and Nissan models such as the 350Z, FX35, FX45, G20, G35, M35, and M45, ensuring compatibility and reliable operation.

About the Denso OE Style Product Line

The OE Style product line by Denso focuses on delivering parts that meet original equipment specifications. This oxygen sensor from the OE Style line is designed to match the fit, form, and function of the factory-installed sensor, providing a direct replacement that supports proper emissions control and engine performance in compatible Infiniti and Nissan vehicles.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for proper air-fuel mixture
• Helps resolve rough idling and poor fuel economy
• Reduces emissions by ensuring correct exhaust gas readings
• Prevents check engine light triggers related to oxygen sensor faults
• Supports smooth engine performance and drivability

Installation Notes and Tips

When installing the Denso 234-4302 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Carefully route the 14.57-inch wiring harness to avoid contact with hot exhaust components or moving parts. Confirm the male connector securely mates with the vehicle’s wiring harness to maintain proper electrical connection.

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 234-4302 sensor is built to provide reliable operation consistent with original equipment. Warranty coverage details should be confirmed with the parts distributor or vehicle manufacturer.