Bosch 17179 Oxygen Sensor - Upstream

Bosch Wideband O2 Sensor for Nissan

Bosch 17179 is an Actual OE Oxygen Sensor built for precise air-fuel ratio monitoring in wideband applications. It delivers continuous measurement across the full lambda range, helping the engine control unit manage mixture control with the detail needed for stable performance and lower emissions.

This Bosch Actual OE Oxygen Sensor line uses Bosch’s wideband A/F sensor design, with fast light-off, optimized heater control, and a durable ceramic construction for dependable operation through heat cycling and changing load conditions. It is a specific-fit, heated upstream sensor with a 5-wire harness and a threaded metal housing.

Key Features

• Wideband air-fuel ratio sensor for precise upstream exhaust monitoring
• Heated design for faster sensor activation
• Specific-fit replacement for direct application matching
• 5-wire configuration with included wiring harness
• Rectangle male connector with blade terminals
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing for OE-style durability
• Bosch 17179 part number for catalog and service reference

Application Details

Compatible with 2004-2006 Nissan Altima, upstream; 2004-2006 Nissan Sentra, upstream; and 2003-2006 Nissan Sentra, upstream in the listed emissions configurations. This part cross-references Hyundai/Kia 226938U300 for the same application. For shoppers searching for a 2004-2006 Nissan Altima upstream oxygen sensor or a 2004-2006 Nissan Sentra wideband O2 sensor, Bosch 17179 matches the OE-style fitment shown here.

Bosch’s Actual OE Oxygen Sensor line focuses on OE-proven sensor architecture and calibration. For Nissan Altima and Nissan Sentra service, Bosch 17179 provides the wideband signal detail needed for modern fuel control strategies, especially where upstream feedback is critical to engine management.

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel ratio readings from a worn wideband sensor
• Rough idle or drivability issues tied to mixture control
• Reduced fuel economy caused by inaccurate exhaust feedback
• Emissions test failures linked to sensor response problems

Installation Notes

Install as an upstream sensor in the threaded exhaust location specified by the vehicle application. Verify connector shape, wire count, and thread size before installation. Because this is a specific-fit sensor, confirm the emissions configuration notes for 2003-2006 Nissan Sentra applications, including California emissions coverage and build-date notes, before ordering.

Quality Assurance

Bosch has decades of OE oxygen sensor development behind this Actual OE Oxygen Sensor line. Bosch 17179 uses the same wideband sensor principles trusted in modern engine management systems, with robust construction intended for consistent signal accuracy and reliable service in demanding thermal conditions.