Bosch 17103 Premium Wideband Air/Fuel Ratio Oxygen Sensor

The Bosch 17103 is a premium wideband air/fuel ratio oxygen sensor designed for precise exhaust monitoring and optimal engine performance. This direct-fit sensor utilizes advanced wideband sensing technology to provide continuous, highly accurate measurements of the air-to-fuel mixture across the full lambda range, giving your vehicle's ECU far more detailed information than traditional switching-type oxygen sensors.

Key Features:

• Advanced wideband sensing element for exact air/fuel measurement and superior emissions control
• 5-wire heated sensor design with fast-acting heater for quick light-off and optimal operating temperature
• Double laser-welded stainless steel body that is fully submersible and sealed against exhaust emissions
• OEM-grade quality backed by Bosch's decades of oxygen sensor innovation and manufacturing expertise
• 100% factory tested for full functionality to ensure reliable performance
• 22mm hex size with M18 threaded screw-in mounting for secure installation
• Includes integrated wiring harness for simplified installation

This upstream oxygen sensor measures 22-7/8 inches overall length and features a male blade terminal connector with oval shape. Engineered to OEM standards, it plays a critical role in maintaining proper air-fuel mixture, supporting improved fuel efficiency, engine performance, and reduced emissions under all operating conditions. Cross-references to OE part number 11788631047.