Bosch 15788 Oxygen Sensor - Upstream

Reliable Oxygen Sensor for Mazda 3 and 5 Models

The Bosch Validated Oxygen Sensor 15788 is designed specifically for Mazda 3, Mazda 3 Sport, and Mazda 5 vehicles. This heated wide-band oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

• Heated oxygen sensor for faster activation
• Specific fit for Mazda 3, 3 Sport, and 5 models
• Wide-band sensor type for precise air-fuel ratio monitoring
• 17.1-inch wiring harness with included connector
• Threaded mounting type with 18 mm thread diameter
• Durable metal housing with steel finish
• Blade terminal type with male connector and terminal gender
• Standard replacement grade for reliable performance

About the Bosch Validated Oxygen Sensor Line

The Bosch Validated Oxygen Sensor product line focuses on delivering sensors that meet strict quality and performance standards. These sensors undergo rigorous validation to ensure compatibility and durability for specific vehicle applications. The 15788 oxygen sensor is part of this line, providing a precise fit and reliable operation for Mazda 3 and Mazda 5 models.

Detailed Product Description

This Bosch oxygen sensor features a heated element to reduce warm-up time, enabling quicker sensor response and improved emissions control. The wide-band sensor type offers enhanced accuracy in measuring oxygen levels in the exhaust, which is critical for maintaining the correct air-fuel ratio. The sensor includes a 17.1-inch wiring harness with a rectangular male connector and blade terminals, facilitating straightforward installation. Its threaded mounting type with an 18 mm thread diameter ensures a secure fit in the exhaust system. Constructed with a metal housing and finished in steel, this sensor is built to withstand harsh operating conditions.

Common Applications and Issues Addressed

• Restores proper air-fuel mixture readings for Mazda 3 and 5 models
• Resolves check engine light triggers related to oxygen sensor faults
• Improves fuel efficiency by providing accurate sensor data
• Reduces harmful emissions by supporting optimal combustion
• Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

• Ensure vehicle compatibility with Mazda 3, 3 Sport, or 5 before installation
• Use a 22 mm oxygen sensor socket for removal and installation
• Do not overtighten; torque to manufacturer specifications
• Inspect wiring harness and connector for damage before installation
• Disconnect the battery before replacing the sensor to avoid electrical issues

Quality Assurance and Warranty

The Bosch Validated Oxygen Sensor 15788 is manufactured to meet OEM standards for fit, form, and function. Bosch provides a standard replacement grade sensor designed for durability and consistent performance. While specific warranty details may vary, Bosch sensors typically come with a limited warranty covering defects in materials and workmanship.