Bosch 17195 Oxygen Sensor - Upstream

Bosch Wideband OE Oxygen Sensor

Bosch 17195 is a specific-fit, heated wideband air/fuel oxygen sensor for precise upstream exhaust monitoring. It is engineered for 2016-2021 Land Rover Range Rover and 2016-2021 Land Rover Range Rover Sport applications, where accurate air-fuel ratio feedback is critical for engine control and emissions performance.

As part of Bosch Actual OE Oxygen Sensor line, this sensor reflects Bosch’s OE development experience in wideband technology and uses a planar pump-cell design with fast response characteristics and robust ceramic construction.

Key Features

• Wideband A/F oxygen sensor for continuous air-fuel ratio measurement
• Heated design for faster sensor activation and stable operation
• Specific fit with included wiring harness
• 5-wire sensor with 6 terminals and oblong male connector
• Threaded mounting, 18 mm thread size, 22 mm hex size
• Overall length: 14.7 in; harness length: 11.3 in
• Standard replacement grade for OE-style service

Detailed Description

Bosch part number 17195 is a wide band oxygen sensor built for upstream placement on select Land Rover luxury SUVs. It provides the ECU with detailed air-fuel ratio data across the full lambda range, helping maintain precise mixture control during idle, acceleration, and load changes. For Range Rover and Range Rover Sport owners, Bosch 17195 offers an OE-style replacement solution that matches the vehicle’s original sensor strategy.

This Bosch Actual OE Oxygen Sensor line is based on Bosch’s long history of OE sensor development and is intended for modern engine management systems that rely on fast, accurate feedback. If you are searching for a Bosch 17195 oxygen sensor for 2016-2021 Land Rover Range Rover or Bosch 17195 for 2016-2021 Land Rover Range Rover Sport upstream, this part is built for that application.

This part cross-references LR035751 for the same application.

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel ratio readings reported to the ECU
• Rough idle or inconsistent throttle response caused by sensor degradation
• Reduced fuel economy from inaccurate mixture control
• Emissions test failures tied to faulty wideband sensor output

Installation Notes

Install in the upstream exhaust position only for the listed Land Rover applications. Verify connector shape, terminal count, thread size, and harness routing before installation. Use the correct oxygen sensor socket and follow factory service procedures for removal and torque specification. Because this is a specific-fit sensor, confirm vehicle year, model, and engine configuration against the catalog listing before ordering.

Quality Assurance

Bosch supplies OE-developed oxygen sensor technology to the aftermarket, and this sensor is built to the same application standards used in modern engine management systems. Bosch 17195 is a standard replacement part for the listed Range Rover and Range Rover Sport applications.