Bosch 15561 Oxygen Sensor - Downstream or Upstream

Reliable Oxygen Sensor for Chevrolet Aveo and Pontiac Models

The Bosch Engineered Oxygen Sensor 15561 is designed specifically for select Chevrolet and Pontiac vehicles, including the Aveo, GTO, Wave, and Wave5. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.

• Specific fit for Chevrolet Aveo, Pontiac GTO, Wave, and Wave5
• 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 9.9-inch wiring harness with 4 male blade terminals and oblong male connector
• Durable metal housing finished in steel with an overall length of 13.6 inches
• Standard replacement grade with universal wiring harness included

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 to maintain factory-level performance. The 15561 oxygen sensor is part of this line, offering a heated narrow-band sensor designed to meet the exact specifications of Chevrolet and Pontiac models for which it is intended.

Product Details and Specifications

This oxygen sensor features a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for secure installation. The sensor is heated, which helps it reach operating temperature quickly for accurate readings. It includes a 9.9-inch wiring harness with four wires and blade-type terminals, connected via an oblong male connector. The sensor’s metal housing is finished in steel, providing durability and resistance to harsh engine conditions. The overall length of the sensor is 13.6 inches, with a sealing surface to connector length of 12.4 inches, ensuring proper fitment in the exhaust system.

Common Applications and Issues Addressed

• Restores accurate air-fuel ratio readings for improved engine efficiency
• Helps resolve check engine light triggers related to oxygen sensor faults
• Reduces emissions by ensuring proper catalytic converter function
• Improves fuel economy by providing precise sensor data to the engine control unit
• Prevents rough idling and engine performance issues caused by faulty sensors

Installation Notes and Tips

Installation requires a 22 mm wrench or oxygen sensor socket to remove the old sensor and install the new one. Ensure the threaded mounting hole is clean before installation to avoid cross-threading. The wiring harness included matches the original connector type and terminal configuration, simplifying the electrical connection. No mounting bracket is included, so use the existing mounting points on the vehicle. Verify compatibility with your specific Chevrolet Aveo, Pontiac GTO, Wave, or Wave5 model before installation.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15561 is manufactured to meet OEM standards for fit, form, and function. It is a standard replacement grade sensor designed to maintain emission control system integrity. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship. Refer to Bosch or your parts provider for exact warranty terms.