HomeEmission Control > SensorsBosch 16596 Oxygen Sensor - Downstream Left
Part #: 16596

Bosch 16596 Oxygen Sensor - Downstream Left

Actual OE Oxygen Sensor, Downstream Left
36 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$89.29Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Actual OE Oxygen Sensor, Downstream Left
Fitment: Nissan and INFINITI, Armada, Titan, Pathfinder, QX56, and Pathfinder Armada
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

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:

YearMakeModelLitersCylindersPositionNotes
2015NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2015NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2014NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2014NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2013NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2013NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2012NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2012NissanPathfinder5.6LV8Downstream LeftActual OE Oxygen Sensor
2012NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2011NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2011NissanPathfinder5.6LV8Downstream LeftActual OE Oxygen Sensor
2011NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2010INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2010NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2010NissanPathfinder5.6LV8Downstream LeftActual OE Oxygen Sensor
2010NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2009INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2009NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2009NissanPathfinder5.6LV8Downstream LeftActual OE Oxygen Sensor
2009NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2008INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2008NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2008NissanPathfinder5.6LV8Downstream LeftActual OE Oxygen Sensor
2008NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2007INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2007NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2007NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2006INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2006NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2006NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2005INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2005NissanArmada5.6LV8Downstream LeftActual OE Oxygen Sensor
2005NissanTITAN5.6LV8Downstream LeftActual OE Oxygen Sensor
2004INFINITIQX565.6LV8Downstream LeftActual OE Oxygen Sensor
2004NissanPathfinder Armada5.6LV8Downstream LeftActual OE Oxygen Sensor
2004NissanTITAN5.6LV8Downstream LeftActual 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.