HomeEmission Control > SensorsSpectra OS5416 Oxygen Sensor - Downstream Left
Part #: OS5416

Spectra OS5416 Oxygen Sensor - Downstream Left

Downstream Left
2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI and Nissan, QX4 and Pathfinder
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Overview of Spectra OS5416 Oxygen Sensor for Infiniti and Nissan

The Spectra OS5416 oxygen sensor is designed specifically for select Infiniti and Nissan vehicles, including the Pathfinder and QX4 models. This sensor helps maintain optimal engine performance by accurately monitoring exhaust gases.

  • Compatible with Infiniti Pathfinder and Nissan QX4 models
  • Part number OS5416 ensures precise fitment
  • Monitors oxygen levels in exhaust for efficient combustion
  • Direct replacement sensor for emission control systems
  • Durable construction for reliable long-term operation

Detailed Description of the OS5416 Oxygen Sensor

The Spectra OS5416 oxygen sensor is an essential component in the emission control system of Infiniti Pathfinder and Nissan QX4 vehicles. It measures the oxygen content in the exhaust gases and sends this data to the engine control unit (ECU). This information allows the ECU to adjust the air-fuel mixture for optimal combustion, improving fuel efficiency and reducing harmful emissions. The OS5416 sensor is engineered to meet OEM specifications, ensuring compatibility and reliable performance in the specified vehicle models.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty sensors
  • Prevents failed emissions tests due to inaccurate oxygen readings
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports proper catalytic converter function by maintaining correct air-fuel ratios

Installation Notes and Tips for Infiniti Pathfinder and Nissan QX4

When installing the Spectra OS5416 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness. It is recommended to apply anti-seize compound on the sensor threads to facilitate future removal. Verify the sensor connector is securely attached to prevent signal interruptions. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty Information

The Spectra OS5416 oxygen sensor is manufactured to meet industry standards for emission control components. It undergoes rigorous testing to ensure durability and accurate performance in Infiniti Pathfinder and Nissan QX4 vehicles. This part is backed by a limited warranty covering defects in materials and workmanship, providing confidence in its reliability and fitment.

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001INFINITIQX43.5LV6Downstream Left
2001NissanPathfinder3.5LV6Downstream LeftTo Aug/2000

* 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:

154452133126226A14W000226A14W001226A14W004234432724639752661ES20394OS2109SG1276SG1276T

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.