HomeEmission Control > SensorsSpectra OS5373 Oxygen Sensor - Upstream
Part #: OS5373

Spectra OS5373 Oxygen Sensor - Upstream

Upstream
⚙️ 2 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Dodge and Eagle, Monaco and Premier
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Overview of Spectra OS5373 Oxygen Sensor for Dodge Monaco

The Spectra OS5373 oxygen sensor is designed specifically for Dodge Monaco vehicles, ensuring accurate emission control and optimal engine performance. This sensor plays a critical role in monitoring exhaust gases to maintain efficient fuel combustion.

  • Compatible with Dodge Monaco models
  • Part number OS5373 for precise identification
  • Monitors oxygen levels in exhaust gases
  • Supports emission control system functionality
  • Durable construction for reliable operation

Detailed Product Description

The Spectra OS5373 oxygen sensor is an essential component in the emission control system of Dodge Monaco vehicles. By measuring the oxygen content in the exhaust stream, it provides real-time data to the engine control unit (ECU). This data helps the ECU adjust the air-fuel mixture for optimal combustion, reducing harmful emissions and improving fuel efficiency. The sensor is engineered to meet OEM specifications, ensuring compatibility and performance consistency with the Dodge Monaco.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty sensors
  • Prevents emission test failures due to inaccurate oxygen readings
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports smooth engine performance and reduced exhaust emissions

Installation Notes and Tips

When installing the Spectra OS5373 oxygen sensor on a Dodge Monaco, ensure the engine is cool to avoid burns. Use an oxygen sensor socket for proper removal and installation. Verify the sensor wiring and connector are secure and free from damage. It is recommended to apply anti-seize compound on the sensor threads to facilitate future removal, but avoid contaminating the sensor tip. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Spectra manufactures the OS5373 oxygen sensor to meet strict quality standards, ensuring durability and reliable performance in emission control applications. This part is backed by a limited warranty covering defects in materials and workmanship, providing confidence in its long-term use on Dodge Monaco vehicles.

This part fits 2 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1992DodgeMonaco3.0LV6Upstream
1991DodgeMonaco3.0LV6Upstream

* 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:

157072131326213623230322344013460506446050775S3236751525ES10185ES20024OS127OS145OS184SG154SG154TSG1830SG1830TSG33SG33TSU336

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