HomeEmission Control > SensorsSpectra OS5203 Oxygen Sensor - Upstream
Part #: OS5203

Spectra OS5203 Oxygen Sensor - Upstream

Upstream
⚙️ 6 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: Chevrolet and Pontiac, Camaro and Firebird
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Reliable Oxygen Sensor for Chevrolet Camaro and Pontiac Firebird

The Spectra OS5203 oxygen sensor is designed to provide accurate emissions monitoring for Chevrolet Camaro and Pontiac Firebird models. This sensor helps maintain optimal engine performance and ensures compliance with emission standards.

  • Direct replacement oxygen sensor for Chevrolet Camaro and Pontiac Firebird
  • Part number OS5203 for precise fit and function
  • Compatible with emission control systems to monitor exhaust gases
  • Durable construction for long-lasting performance
  • GTIN 00671607156850 for easy identification and ordering

Product Details and Compatibility

The Spectra OS5203 oxygen sensor is engineered to meet the specifications required by Chevrolet and Pontiac vehicles, specifically the Camaro and Firebird models. This sensor plays a critical role in measuring the oxygen content in the exhaust gases, allowing the engine control unit to adjust the air-fuel mixture for efficient combustion. Using the correct oxygen sensor like the OS5203 ensures that your vehicle maintains proper emissions levels and engine efficiency.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces increased fuel consumption caused by faulty sensors
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves exhaust emissions compliance
  • Supports smooth engine performance and responsiveness

Installation Notes and Tips

When installing the Spectra OS5203 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket for proper removal and installation. Verify the sensor connector matches the vehicle harness to avoid electrical issues. It is recommended to check for exhaust leaks and clean the sensor mounting area before installation to ensure accurate readings.

Quality Assurance and Warranty

Spectra manufactures the OS5203 oxygen sensor to meet industry standards for emission control components. While specific warranty details may vary, Spectra products typically come with a limited warranty covering defects in materials and workmanship. Always refer to the product documentation for exact warranty terms.

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000ChevroletCamaro3.8LV6UpstreamLocated In Left Manifold; w/ 2 Electrical Connections Sensor; Located In Right Manifold; w/ 2 Electrical Connections Sensor
2000PontiacFirebird3.8LV6UpstreamLocated In Left Manifold; w/ 2 Electrical Connections Sensor; Located In Right Manifold; w/ 2 Electrical Connections Sensor
1999ChevroletCamaro3.8LV6UpstreamLocated In Left Manifold; w/ 2 Electrical Connections Sensor; Located In Right Manifold; w/ 2 Electrical Connections Sensor
1999PontiacFirebird3.8LV6UpstreamLocated In Left Manifold; w/ 2 Electrical Connections Sensor; Located In Right Manifold; w/ 2 Electrical Connections Sensor
1998ChevroletCamaro3.8LV6UpstreamLocated In Left Manifold; w/ 2 Electrical Connections Sensor; Located In Right Manifold; w/ 2 Electrical Connections Sensor
1998PontiacFirebird3.8LV6UpstreamLocated In Left Manifold; w/ 2 Electrical Connections Sensor; Located In Right Manifold; w/ 2 Electrical Connections 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:

13444215042342013251739175S3154AFS87ES10953OS2438SG1601SG1601TSU1219

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