Bosch 17009 Oxygen Sensor - Upstream

Bosch Wideband OE Oxygen Sensor

Bosch 17009 is an Actual OE wideband air-fuel oxygen sensor built for precise upstream mixture monitoring. It delivers continuous lambda-range readings to the ECU, helping maintain accurate fuel control in demanding driving conditions.

Compatible With 2014-2019 Jeep Grand Cherokee, upstream; 2014-2017 Ram ProMaster 1500, upstream; 2014-2017 Ram ProMaster 2500, upstream; 2014-2017 Ram ProMaster 3500, upstream; and 2014-2015 Chevrolet Cruze, upstream.

Key Features

• Wideband A/F oxygen sensor for high-precision air-fuel ratio measurement
• Specific-fit design with 5-wire harness and 6-terminal connector
• Heated sensor with optimized heater control for faster operating readiness
• Threaded mounting with 18 mm thread size and 22 mm hex size
• Metal housing and ceramic sensor construction for durability under thermal cycling
• Wiring harness included for direct replacement applications
• Bosch part number 17009 for OE-style service replacement

Product Details

Bosch 17009 is part of the Bosch Actual OE Oxygen Sensor line, which focuses on OE-level fit, signal accuracy, and long-term service consistency. Bosch introduced the first wideband A/F oxygen sensor and the planar pump-cell design that became the standard for modern engine management. This sensor is engineered for upstream use where the ECU needs detailed feedback to manage fuel delivery, emissions output, and drivability across changing load conditions. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn upstream sensor
• Rough idle or hesitation caused by inaccurate mixture feedback
• Reduced fuel economy from poor fuel control
• Elevated emissions from delayed or unstable sensor response

Installation Notes

Install Bosch 17009 in the upstream position only for the listed applications. Verify the 18 mm thread size, oblong male connector, 5-wire harness, and 6-terminal layout before installation. Because this is a threaded oxygen sensor, proper removal and installation tools should be used to avoid damage to the sensor body or exhaust bung. Confirm vehicle calibration and connector routing on the Jeep Grand Cherokee, Ram ProMaster, or Chevrolet Cruze before final assembly.

Quality Assurance

Bosch backs this sensor with more than five decades of OE development in oxygen sensing and engine management technology. The Actual OE Oxygen Sensor line is built to meet the demands of modern emissions systems and provide reliable service in OE replacement applications.