Bosch 15131 Oxygen Sensor - Downstream or Upstream

Reliable Oxygen Sensor for Select GM and Isuzu Vehicles

The Bosch Engineered Oxygen Sensor part number 15131 is designed to provide accurate air-fuel mixture readings for improved engine performance and emissions control. This specific fit oxygen sensor is compatible with various Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab models, ensuring precise fitment and reliable operation.

• Specific fit for Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, and Saab models
• Heated narrow-band oxygen sensor for faster response times
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size
• 16.4-inch wiring harness length with trapezoid male connector
• Standard replacement grade with metal housing for durability
• Includes wiring harness with 4 male blade terminals
• Overall length of 20.1 inches for proper installation

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise and reliable emission control components tailored to specific vehicle applications. Part number 15131 exemplifies this approach by offering a narrow-band heated oxygen sensor engineered to meet the exact specifications of select GM and Isuzu models. This ensures optimal sensor performance and compatibility with factory systems.

Product Details and Specifications

This oxygen sensor features a narrow-band heated design, which allows it to reach operating temperature quickly for accurate air-fuel ratio monitoring. The sensor’s metal housing and threaded mounting type provide a secure and durable installation. The trapezoid-shaped male connector with four blade terminals ensures a reliable electrical connection. With a wiring harness length of 16.4 inches and an overall length of 20.1 inches, this sensor fits precisely in the designated mounting location.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for improved fuel efficiency
• Helps reduce harmful emissions by providing accurate sensor data
• Resolves engine performance issues such as rough idling or hesitation
• Prevents check engine light triggers related to oxygen sensor faults
• Supports proper operation of catalytic converter systems

Installation Notes and Tips

Installation requires removing the old oxygen sensor and threading the Bosch 15131 sensor into the factory mounting hole. Use a 22 mm oxygen sensor socket for proper tightening. Ensure the trapezoid male connector is securely connected to the vehicle’s wiring harness. No additional mounting brackets or accessories are included, so verify compatibility with your vehicle’s existing hardware. This sensor is designed for specific fitment, so confirm your vehicle make and model before installation.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15131 is manufactured to meet OEM standards for fit, form, and function. It is constructed with durable metal housing and high-quality internal components to withstand harsh engine conditions. 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.