Bosch 18090 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Nissan and INFINITI Vehicles

The Bosch Validated Oxygen Sensor 18090 is designed specifically for select Nissan and INFINITI models, including the Cube, FX50, and Sentra. This heated wide-band oxygen sensor ensures accurate air-fuel mixture readings to help maintain optimal engine performance and emissions control.

• Heated oxygen sensor for faster warm-up and accurate readings
• Specific fit for Nissan Cube, FX50, and Sentra models
• Wide-band sensor type for precise air-fuel ratio monitoring
• 16.3-inch wiring harness with 5 wires and a square male connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade with included wiring harness

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering reliable, vehicle-specific sensors that meet OEM specifications. This line is engineered to provide consistent performance and durability, ensuring proper emissions control and engine efficiency. The 18090 sensor is part of this line, offering a precise fit and function for Nissan and INFINITI vehicles requiring a heated wide-band oxygen sensor.

Product Details and Specifications

This Bosch oxygen sensor features a heated design to reduce warm-up time, allowing the engine control unit to receive accurate oxygen level data sooner. The sensor includes a 16.3-inch wiring harness with 5 wires and a square-shaped male connector, designed for a specific fit rather than universal application. The threaded mounting type with an 18 mm diameter and 22 mm hex size ensures secure installation. The sensor’s metal housing finished in steel provides durability under harsh engine conditions. Overall length measures 19.7 inches, with 18.5 inches from sealing surface to connector end.

Common Applications and Issues Addressed

• Restores proper air-fuel ratio readings for Nissan Cube, FX50, and Sentra
• Helps resolve rough idling and poor fuel economy caused by faulty sensors
• Reduces emissions by ensuring accurate oxygen sensor feedback
• Prevents check engine light triggers related to oxygen sensor faults
• Supports engine performance by maintaining correct combustion efficiency

Installation Notes and Tips

Installation requires removal of the old oxygen sensor and threading the Bosch 18090 sensor into the exhaust manifold or pipe. Use a 22 mm oxygen sensor socket for proper tightening. Ensure the wiring harness is connected securely to the vehicle’s harness using the square male connector. No mounting bracket or additional accessories are included, so verify compatibility before installation. This sensor is designed for specific fitment on Nissan Cube, FX50, and Sentra models.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 18090 is manufactured to meet OEM standards for fit, form, and function. Bosch provides quality assurance through rigorous testing to ensure sensor reliability and durability. This part is a standard replacement grade sensor designed to maintain emissions compliance and engine performance. Warranty details should be confirmed with the parts distributor or Bosch directly.