Bosch 18137 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Reliable Oxygen Sensor for Nissan and Infiniti Vehicles

The Bosch Validated Oxygen Sensor 18137 is designed specifically for select Nissan and Infiniti models, ensuring precise emission control and optimal engine performance. This narrow-band heated oxygen sensor provides accurate air-fuel mixture readings to help maintain efficient combustion and reduce harmful emissions.

• Specific fit for Nissan and Infiniti models including 370Z, Altima, Juke, Murano, Pathfinder, Q40, Q50, Q60, Q70, Q70L, Quest, QX50, QX60, and QX70
• Heated narrow-band oxygen sensor type for faster response times
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size for secure installation
• Includes a 12.3-inch wiring harness with 4-pin rectangular male connector
• Constructed with durable metal housing and steel finish for long-lasting performance
• Standard replacement grade with 4 female terminals and a total length of 15.7 inches

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor line is engineered to meet or exceed OEM specifications, providing reliable emission control solutions for specific vehicle applications. This product line focuses on delivering precise sensor readings and compatibility, ensuring that the oxygen sensor integrates seamlessly with the vehicle’s engine management system. The 18137 sensor is part of this line, offering a heated narrow-band design that supports efficient fuel management and emission reduction.

Product Details and Specifications

The Bosch 18137 oxygen sensor features a heated narrow-band sensor type that allows for quicker sensor warm-up and improved accuracy in measuring oxygen levels in the exhaust gases. Its threaded mounting type with an 18 mm thread diameter and 22 mm hex size ensures a secure and proper fit. The sensor includes a 12.3-inch wiring harness with a 4-pin rectangular male connector, designed specifically for the listed Nissan and Infiniti models. The metal housing and steel finish provide durability under high-temperature conditions, while the overall length of 15.7 inches accommodates installation requirements. This sensor is a standard replacement part, making it suitable for restoring factory-level emission control performance.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Helps resolve check engine light codes related to oxygen sensor failure
• Reduces excessive emissions caused by faulty sensors
• Improves fuel economy by ensuring proper combustion
• Prevents rough idling and engine performance issues linked to sensor malfunction

Installation Notes and Tips

Installation of the Bosch 18137 oxygen sensor requires a threaded mounting hole with an 18 mm diameter. Use a 22 mm hex socket for removal and installation. Ensure the wiring harness is connected securely to the vehicle’s 4-pin female connector to maintain proper electrical communication. No additional mounting brackets or accessories are included, so verify compatibility with your vehicle’s existing setup. It is recommended to handle the sensor carefully to avoid damage to the wiring or sensor tip during installation.

Quality Assurance and Warranty

Bosch oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Bosch Validated Oxygen Sensor 18137 undergoes rigorous testing to comply with OEM specifications. While specific warranty details are not provided here, Bosch typically offers a limited warranty on their emission control sensors. Refer to Bosch or your parts provider for exact warranty terms.