Bosch 15151 Oxygen Sensor - Downstream or Upstream

Reliable Oxygen Sensor for Select GM and Related Vehicles

The Bosch Engineered Oxygen Sensor 15151 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. This specific fit oxygen sensor is compatible with a range of Buick, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, and Saturn models, ensuring precise integration with your vehicle's emission system.

• Specific fit for select Buick, Chevrolet, GMC, Hummer, Isuzu, Pontiac, Saab, and Saturn models
• Narrow-band heated oxygen sensor for accurate air-fuel ratio monitoring
• 12.2-inch wiring harness length with 4-pin trapezoid female connector
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• Durable metal housing with steel finish and standard replacement grade
• Wiring harness included for straightforward installation

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering reliable emission control components engineered to meet or exceed OEM specifications. The 15151 oxygen sensor is part of this line, offering a narrow-band heated sensor designed for specific vehicle applications. This ensures compatibility and performance consistency across various GM and related models.

Product Details and Specifications

This oxygen sensor features a narrow-band heated sensor type, which helps maintain optimal combustion by providing real-time feedback to the engine control unit. The sensor includes a 12.2-inch wiring harness with four wires and a trapezoid-shaped female connector with four terminals, facilitating a secure and precise electrical connection. The sensor’s threaded mounting type with an 18 mm thread diameter and 22 mm hex size allows for easy installation and removal. Constructed with a metal housing finished in steel, the sensor is built for durability and long-term use. The overall length of the sensor is 15.9 inches, with a sealing surface to connector length of 14.8 inches, ensuring proper fitment in the exhaust system.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in Buick LaCrosse, Chevrolet Silverado 1500, GMC Sierra 1500, and other compatible models
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by ensuring accurate sensor data for the engine control unit
• Addresses check engine light triggers caused by oxygen sensor faults
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Bosch 15151 sensor into the exhaust manifold or pipe. Use a 22 mm oxygen sensor socket for proper torque application. The included wiring harness with a trapezoid female connector ensures a secure electrical connection; verify connector compatibility before installation. No mounting bracket is included, so ensure the sensor is properly threaded and sealed to prevent exhaust leaks. It is recommended to inspect the wiring and connector for damage before installation.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15151 is manufactured to meet OEM standards for fit, form, and function. Constructed with high-quality metal housing and heated sensor elements, it is designed for durability and reliable performance. While specific warranty details are not provided here, Bosch products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.