Bosch 15518 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Nissan Altima, Sentra, and X-Trail

The Bosch Engineered Oxygen Sensor 15518 is designed specifically for Nissan vehicles including the Altima, Sentra, and X-Trail. This narrow-band heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Specific fit for Nissan Altima, Sentra, and X-Trail models
• Heated narrow-band oxygen sensor for precise emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• 15.9-inch wiring harness length with 4-wire blade terminals and square male connector
• Durable metal housing with steel finish and standard replacement grade
• Overall length of 19.3 inches and 18.1 inches from sealing surface to connector end

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering reliable emission control components tailored to specific vehicle applications. The 15518 sensor is engineered to meet OEM specifications for Nissan models, providing consistent performance and durability. This product line emphasizes precise sensor technology and robust construction to maintain emission standards and engine efficiency.

Product Details and Specifications

This Bosch oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature for accurate oxygen level detection. The sensor includes a 4-wire configuration with blade-type terminals and a square male connector, ensuring secure electrical connections. Its threaded mounting type with an 18 mm diameter and 22 mm hex size facilitates straightforward installation. The metal housing with a steel finish offers resistance to harsh engine conditions. The wiring harness length of 15.9 inches and overall length of 19.3 inches provide ample reach for proper placement within the exhaust system.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for Nissan Altima, Sentra, and X-Trail engines
• Reduces emissions by providing accurate oxygen level data to the engine control unit
• Prevents engine performance issues related to faulty oxygen sensors
• Addresses check engine light triggers caused by sensor failure
• Supports fuel efficiency by ensuring optimal combustion

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15518, ensure the threaded mounting location is clean and free of debris. Use a 22 mm socket for proper tightening without damaging the sensor. Verify the 4-wire blade terminals and square male connector are securely connected to the vehicle’s wiring harness. Avoid over-tightening to prevent thread damage. This sensor is designed for specific Nissan models, so confirm compatibility before installation.

Quality Assurance and Warranty

Bosch Engineered Oxygen Sensors are manufactured to meet strict quality standards for durability and performance. This sensor is a standard replacement grade part, constructed with high-quality metal housing and reliable heating elements. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed warranties to ensure customer confidence in product reliability.