OE Quality
60-Day Returns

Bosch 16596 Oxygen Sensor - Downstream Left
Reliable Oxygen Sensor for Nissan and INFINITI Vehicles
The Bosch Actual OE Oxygen Sensor 16596 is designed specifically for select Nissan and INFINITI models, including the Armada, Pathfinder, QX56, and TITAN. This narrow-band heated oxygen sensor ensures accurate emissions control and optimal engine performance.
- Specific fit for Nissan Armada, Pathfinder, Pathfinder Armada, QX56, and TITAN
- Heated narrow-band oxygen sensor for precise air-fuel mixture readings
- Threaded mounting type with 18 mm thread diameter and 22 mm hex size
- Includes 8.5-inch wiring harness with 4 male blade terminals and a square male connector
- Standard replacement grade with durable metal housing and steel finish
- Overall length of 11.8 inches and wiring harness length of 8.5 inches
About the Bosch Actual OE Oxygen Sensor Line
The Bosch Actual OE Oxygen Sensor product line is engineered to meet original equipment specifications, providing a direct replacement for factory-installed sensors. This ensures compatibility and reliable performance in emission control systems. The 16596 part number belongs to this line, offering a standard replacement sensor with a heated narrow-band design tailored for specific Nissan and INFINITI models.
Product Details and Specifications
This oxygen sensor features a threaded mounting type with an 18 mm thread diameter and a 22 mm hex size for secure installation. The sensor is heated to provide faster response times and improved accuracy in measuring oxygen levels in the exhaust gases. It includes a wiring harness measuring 8.5 inches with four wires and blade terminals, connected via a square-shaped male connector. The sensor’s metal housing and steel finish contribute to its durability under high-temperature conditions. The overall length from sealing surface to connector end is 10.6 inches, with a total length of 11.8 inches, making it suitable for the specified vehicle models.
Common Applications and Issues Addressed
- Restores accurate air-fuel ratio readings for improved engine efficiency
- Helps resolve check engine light triggers related to oxygen sensor faults
- Reduces emissions by ensuring proper catalytic converter function
- Improves fuel economy by providing precise sensor data to the engine control unit
- Prevents rough idling and engine performance issues caused by faulty sensors
Installation Notes and Tips
When installing the Bosch 16596 oxygen sensor, ensure the engine is cool to avoid burns. Use a 22 mm oxygen sensor socket for removal and installation. Verify the sensor’s wiring harness length and connector type match the vehicle’s factory specifications. Avoid over-tightening the threaded sensor to prevent damage. No mounting bracket is included, so use the existing mounting point on the vehicle.
Quality Assurance and Warranty
Bosch oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. The Actual OE Oxygen Sensor 16596 is a standard replacement part designed for durability and reliable performance. While specific warranty details are not provided here, Bosch typically offers limited warranties on their emission control components. Refer to Bosch or the vehicle manufacturer for warranty information.
This part fits 36 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2015 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2014 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2014 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2013 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2013 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2012 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2012 | Nissan | Pathfinder | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2012 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2011 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2011 | Nissan | Pathfinder | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2011 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2010 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2010 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2010 | Nissan | Pathfinder | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2010 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2009 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2009 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2009 | Nissan | Pathfinder | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2009 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2008 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2008 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2008 | Nissan | Pathfinder | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2008 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2007 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2007 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2007 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2006 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2006 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2006 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2005 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2005 | Nissan | Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2005 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2004 | INFINITI | QX56 | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2004 | Nissan | Pathfinder Armada | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
| 2004 | Nissan | TITAN | 5.6L | V8 | Downstream Left | Actual OE Oxygen Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.