HomeEmission Control > SensorsSpectra OS5409 Oxygen Sensor - Upstream
Part #: OS5409

Spectra OS5409 Oxygen Sensor - Upstream

Upstream
3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, Celica
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Reliable Oxygen Sensor for Toyota Celica

The Spectra OS5409 oxygen sensor is designed specifically for Toyota Celica models, ensuring accurate emission control and optimal engine performance. This sensor helps maintain proper air-fuel mixture by monitoring oxygen levels in the exhaust system.

  • Compatible with Toyota Celica vehicles
  • Part number OS5409 for precise identification
  • Ensures accurate oxygen level readings for emission control
  • Durable construction for long-lasting performance
  • Direct replacement sensor for easy installation

Detailed Product Description

The Spectra OS5409 oxygen sensor is an essential component in the emission control system of Toyota Celica models. 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 ratio for efficient combustion, reducing harmful emissions and improving fuel economy. The sensor is engineered to meet OEM specifications, providing reliable and consistent performance throughout its service life.

Common Issues Addressed by the OS5409 Oxygen Sensor

  • Check engine light triggered by faulty oxygen sensor readings
  • Poor fuel economy due to incorrect air-fuel mixture
  • Increased emissions failing vehicle inspections
  • Engine hesitation or rough idling caused by sensor malfunction
  • Reduced engine performance linked to inaccurate exhaust data

Installation Notes and Tips

  • Ensure the vehicle is cool before sensor replacement to avoid burns
  • Use appropriate tools to avoid damaging the sensor or wiring
  • Verify compatibility with Toyota Celica models before installation
  • Check and clean the sensor connector to ensure proper electrical contact
  • Follow torque specifications to prevent sensor damage

Quality Assurance and Warranty

The Spectra OS5409 oxygen sensor is manufactured to meet strict quality standards, ensuring durability and reliable operation. While specific warranty details may vary, Spectra products typically come with a limited warranty covering defects in materials and workmanship. This provides confidence in the sensor’s performance and longevity when installed in compatible Toyota Celica vehicles.

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2002ToyotaCelica1.8LL4Upstream
2001ToyotaCelica1.8LL4Upstream
2000ToyotaCelica1.8LL4Upstream

* 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:

1361913633152381597021329932344604245715S39735S3975752238752247752509753516894652067089465207008946520820ES20157OS1569OS1570OS1571SG815SG815TSG816SG816TSG817SG817TSU5638SU5639

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