Bosch 15703 Oxygen Sensor - Downstream or Upstream

Reliable Oxygen Sensor for Select GM and Honda Vehicles

The Bosch Engineered Oxygen Sensor 15703 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 Acura, Buick, Cadillac, Chevrolet, GMC, Honda, Isuzu, Oldsmobile, and Pontiac models, ensuring precise fitment and reliable operation.

• Specific fit for multiple GM and Honda models including Chevrolet Silverado, GMC Sierra, Honda Passport, and Pontiac Grand Prix
• Narrow-band heated oxygen sensor for accurate emissions monitoring
• Threaded mounting type with 18 mm thread diameter and 22 mm hex size for secure installation
• Includes a 9.5-inch wiring harness with 4 male blade terminals and an oblong male connector
• Durable metal housing finished in steel for long-lasting performance
• Standard replacement grade with a total length of 13.2 inches
• Wiring harness included for direct replacement

About the Bosch Engineered Oxygen Sensor Line

The Bosch Engineered Oxygen Sensor line focuses on delivering precise sensor technology tailored to specific vehicle applications. The 15703 model is part of this line, offering a narrow-band heated sensor designed to meet OEM specifications. This ensures compatibility and reliable emissions control for vehicles such as the Chevrolet Camaro, GMC Yukon, and Honda Passport.

Product Details and Specifications

This oxygen sensor features a narrow-band sensor type with heating capability to provide quick response times and accurate air-fuel ratio readings. The sensor is threaded with an 18 mm diameter and includes a 22 mm hex size for installation using standard tools. The wiring harness length is 9.5 inches, with a total overall length of 13.2 inches from sealing surface to connector end. The connector is oblong in shape with four male blade terminals, ensuring a secure electrical connection. The sensor housing is constructed from metal with a steel finish, providing durability under high-temperature conditions.

Common Applications and Issues Addressed

• Replacement for faulty or failing oxygen sensors in compatible Acura, Buick, Cadillac, Chevrolet, GMC, Honda, Isuzu, Oldsmobile, and Pontiac vehicles
• Helps resolve engine performance issues related to incorrect air-fuel mixture readings
• Reduces emissions by ensuring accurate sensor data for the engine control unit (ECU)
• Addresses check engine light triggers caused by oxygen sensor faults
• Improves fuel efficiency by maintaining proper combustion control

Installation Notes and Tips

Installation requires a 22 mm oxygen sensor socket or wrench. Ensure the engine is cool before removal to avoid injury. The threaded mounting type allows for straightforward replacement in the original sensor location. Verify connector compatibility with the vehicle’s wiring harness before installation. No mounting bracket is included, so use the existing sensor bracket if applicable. Proper torque specifications should be followed to prevent sensor damage or exhaust leaks.

Quality Assurance and Warranty

The Bosch Engineered Oxygen Sensor 15703 is manufactured to meet OEM standards for fit, form, and function. It is a standard replacement grade sensor designed for reliable operation in emission control systems. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed quality assurance to support durability and performance.