Bosch 17287 Oxygen Sensor - Upstream

Bosch Wideband O2 Sensor for OE Control

Bosch 17287 is an Actual OE Oxygen Sensor built for precise air-fuel ratio measurement in wideband applications. It delivers continuous feedback to the ECU for accurate mixture control, helping maintain fuel efficiency, engine response, and lower emissions.

Compatible With 2005-2012 Nissan Frontier, upstream and 2009 Suzuki Equator, upstream. This Bosch oxygen sensor is a direct-fit, specific application replacement for vehicles that use a wideband A/F sensor in the upstream position.

Key Features

• Wideband A/F oxygen sensor for high-precision lambda measurement
• Heated design for faster sensor operation and stable readings
• Specific-fit replacement with threaded mounting
• 5-wire harness with included wiring harness and 12.4 in harness length
• Rectangle connector with male connector and male blade terminals
• Robust metal housing and ceramic sensor construction for thermal durability
• 18 mm thread size, 22 mm hex size, and 15.7 in overall length

Product Details

Bosch 17287 uses wideband sensor technology to provide the ECU with detailed air-fuel ratio data across the full lambda range, rather than the limited switching signal of a conventional oxygen sensor. Bosch pioneered the planar pump-cell wideband design used in modern engine management, and this part reflects that OE development focus. For drivers searching for a 2005-2012 Nissan Frontier upstream oxygen sensor or a 2009 Suzuki Equator upstream A/F sensor, Bosch 17287 is built to match the original application requirements.

This part cross-references Nissan 22693EA000 and 1821382Z10 for the same application.

What It Helps Address

• Incorrect air-fuel ratio readings from a worn upstream sensor
• Check engine lights related to oxygen sensor performance
• Rough fuel control that can affect drivability and emissions
• Delayed sensor response during load changes or warm-up
• Reduced engine efficiency caused by inaccurate exhaust feedback

Installation Notes

Install in the upstream threaded sensor location specified for the vehicle application. Verify connector shape, terminal count, thread size, and harness length before installation. Use proper oxygen sensor service tools to avoid damaging the sensor body or exhaust threads. Confirm the replacement matches the original wideband sensor type before clearing fault codes.

Quality Assurance

Bosch supplies OE-developed oxygen sensors backed by more than five decades of engine management experience. Bosch 17287 is built to OE standards for accurate signal output, reliable heater performance, and consistent operation under demanding thermal conditions.