Bosch 15900 Oxygen Sensor - Downstream

Reliable Oxygen Sensor for Chevrolet, Oldsmobile, and Pontiac Vehicles

The Bosch Engineered Oxygen Sensor 15900 is designed specifically for select Chevrolet, Oldsmobile, and Pontiac models, including the Alero, Classic, Corvette, and Grand Am. This narrow-band heated oxygen sensor ensures accurate emission control and optimal engine performance.

• Specific fit for Chevrolet Alero, Oldsmobile Classic, Pontiac Corvette, and Grand Am
• Heated narrow-band oxygen sensor for precise air-fuel mixture readings
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Includes a 40.8-inch wiring harness with 4-pin female connectors
• Durable metal housing finished in steel for long-lasting use
• Standard replacement grade with a total length of 44.5 inches

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. This product line emphasizes precise sensor technology and durable construction, ensuring compatibility and performance for vehicles like the Chevrolet Alero and Pontiac Grand Am. The 15900 part number represents a standard replacement sensor designed to meet OEM specifications.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to quickly reach operating temperature and provide accurate oxygen level readings to the engine control unit. The sensor includes a 4-wire configuration with female pin terminals and a square-shaped connector for secure electrical connections. Its threaded mounting type with an 18 mm diameter and 22 mm hex size facilitates straightforward installation. The sensor’s metal housing and steel finish contribute to its durability under typical engine bay conditions.

Common Applications and Issues Addressed

• Helps maintain proper air-fuel ratio for efficient combustion
• Reduces harmful emissions by providing accurate feedback to the ECU
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel economy by optimizing engine performance
• Prevents rough idling and engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Bosch Engineered Oxygen Sensor 15900, ensure the vehicle is compatible with this specific fitment, including Chevrolet Alero, Oldsmobile Classic, Pontiac Corvette, and Grand Am models. Use a 22 mm oxygen sensor socket for removal and installation. Verify the wiring harness length and connector type match the vehicle’s existing setup. Avoid over-tightening the threaded sensor to prevent damage to the mounting threads.

Quality Assurance and Warranty

This Bosch oxygen sensor is manufactured to meet standard replacement grade requirements, ensuring reliable performance and durability. The product is backed by Bosch’s quality standards, providing confidence in fit and function for the specified vehicle applications. Warranty details should be confirmed with the original product documentation or supplier.