Bosch 18133 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Reliable Oxygen Sensor for Nissan and Infiniti Vehicles

The Bosch Validated Oxygen Sensor 18133 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. Specifically engineered for Nissan and Infiniti models, this heated wide-band oxygen sensor ensures precise monitoring of exhaust gases.

• Heated oxygen sensor for faster warm-up and accurate readings
• Specific fit for Nissan and Infiniti vehicles including Altima, Maxima, 370Z, Pathfinder, and more
• Wide-band sensor type for enhanced emission control
• 12-inch wiring harness with 5 wires and a rectangular male connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing finished in steel for long-lasting performance
• 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 and precise emission control components that meet OEM specifications. This line is engineered to provide consistent sensor performance and durability, ensuring compatibility with specific vehicle models. The 18133 oxygen sensor is part of this line, offering a direct fit and reliable operation for Nissan and Infiniti vehicles.

Product Details and Specifications

This Bosch oxygen sensor features a heated design to reduce warm-up time, allowing the sensor to reach optimal operating temperature quickly. It includes a 12-inch wiring harness with 5 wires and a rectangular male connector, designed for a specific fit rather than universal application. The sensor uses a wide-band sensing element, which provides more accurate air-fuel ratio measurements compared to narrow-band sensors. The threaded mounting type with an 18 mm diameter and 22 mm hex size ensures secure installation. The sensor housing is made of durable metal with a steel finish, weighing approximately 0.2 pounds. The overall length from sealing surface to connector end is 14.4 inches, with a total length of 15.6 inches.

Common Applications and Issues Addressed

• Restores accurate oxygen sensing for Nissan Altima, Maxima, 370Z, Pathfinder, and Infiniti Q60, QX50, and others
• Helps resolve engine performance issues related to incorrect air-fuel mixture
• Reduces emissions by providing precise exhaust gas data to the engine control unit
• Addresses check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by enabling proper combustion adjustments

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Bosch 18133 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 connector with the rectangular male plug. No mounting bracket or additional accessories are included, so verify compatibility with your vehicle’s sensor location. This sensor is designed for specific Nissan and Infiniti models, so confirm fitment before installation.

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 18133 is manufactured to meet OEM standards for quality and durability. Bosch provides a standard replacement grade sensor that undergoes rigorous testing to ensure reliable performance. While specific warranty details may vary, Bosch typically offers coverage against defects in materials and workmanship for a defined period. Refer to Bosch’s official documentation for exact warranty terms.