Denso 234-4308 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Overview of the Denso OE Style Oxygen Sensor 234-4308

The Denso OE Style Oxygen Sensor 234-4308 is designed specifically for select Infiniti and Nissan models, including the 350Z, FX35, FX45, G35, M45, Pathfinder, and Q45. This heated oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.

• Heated sensor type for faster response times
• Specific fit for Infiniti and Nissan vehicles
• Threaded mounting type with 0.708 inch thread diameter
• Four-wire design with female connector
• 21.06-inch wiring harness length for precise installation

Denso OE Style Product Line Details

The OE Style line from Denso focuses on providing oxygen sensors that meet original equipment specifications. This ensures compatibility and reliable performance for vehicles requiring exact sensor replacements. The 234-4308 part maintains the quality and fitment standards expected from factory-installed components, making it suitable for maintaining the emission control systems of your Infiniti or Nissan vehicle.

Detailed Product Description

This oxygen sensor features a heated element to reduce warm-up time, allowing the engine control unit to receive accurate oxygen level data sooner after startup. The sensor’s four-wire configuration supports both the heating element and signal transmission, while the female connector ensures a secure electrical connection. With a 21.06-inch wiring harness length, the sensor is designed for precise routing and installation in the engine bay. The threaded mounting type with a 0.708-inch diameter allows for straightforward replacement without modification.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved fuel efficiency
• Helps reduce harmful emissions by ensuring proper combustion
• Resolves check engine light triggers related to oxygen sensor faults
• Improves engine performance by providing reliable sensor data
• Prevents drivability issues caused by faulty oxygen sensors

Installation Notes and Tips

When installing the Denso 234-4308 oxygen sensor, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate wrench to remove the old sensor carefully. Verify the wiring harness length and connector type match your vehicle’s specifications before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. Reconnect the electrical connector securely to maintain sensor functionality.

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 may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Using a sensor designed for your Infiniti or Nissan model helps maintain compliance with emission regulations and supports long-term vehicle health.