HomeEmission Control > SensorsSpectra OS5506 Oxygen Sensor - Downstream or Intermediate
Part #: OS5506

Spectra OS5506 Oxygen Sensor - Downstream or Intermediate

Downstream
⚙️ 24 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mazda, 2, 3, 3 Sport, and 6
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Reliable Oxygen Sensor for Mazda 2, 3, 3 Sport, and 6

The Spectra OS5506 oxygen sensor is designed to provide accurate emissions monitoring for select Mazda vehicles. Engineered to meet OEM specifications, this sensor helps maintain optimal engine performance and fuel efficiency.

Key Features of Spectra OS5506 Oxygen Sensor

  • Compatible with Mazda 2, Mazda 3, Mazda 3 Sport, and Mazda 6 models
  • Direct replacement oxygen sensor for emission control systems
  • Ensures precise air-fuel mixture readings for improved engine management
  • Durable construction for long-lasting performance
  • Part number OS5506 for easy identification and fitment

Detailed Product Description

The Spectra OS5506 oxygen sensor is an essential component in the emission control system of Mazda vehicles including the 2, 3, 3 Sport, and 6 models. This sensor monitors the oxygen levels in the exhaust gases and sends real-time data to the engine control unit (ECU). Accurate oxygen sensing allows the ECU to adjust the air-fuel ratio, optimizing combustion efficiency and reducing harmful emissions. The OS5506 is manufactured to meet strict quality standards, ensuring reliable operation and compatibility with the specified Mazda models.

Common Issues Addressed by the OS5506 Oxygen Sensor

  • Check engine light triggered by faulty oxygen sensor readings
  • Poor fuel economy due to incorrect air-fuel mixture
  • Rough engine idle or hesitation during acceleration
  • Failed emissions tests related to sensor malfunction
  • Increased exhaust emissions impacting environmental compliance

Installation Notes and Tips

  • Ensure the vehicle is cool before attempting sensor replacement
  • Use appropriate oxygen sensor socket or wrench for removal and installation
  • Apply anti-seize compound to sensor threads if not pre-coated
  • Verify connector compatibility with Mazda 2, 3, 3 Sport, and 6 wiring harness
  • Clear diagnostic trouble codes after installation to reset ECU

Quality Assurance and Warranty Information

Spectra oxygen sensors are manufactured under stringent quality control processes to meet or exceed OEM standards. The OS5506 part is backed by a limited warranty covering defects in materials and workmanship. This warranty provides assurance of product reliability when installed according to manufacturer guidelines.

This part fits 24 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2015Mazda21.5LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2014Mazda21.5LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2013Mazda21.5LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2012Mazda21.5LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2011Mazda21.5LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2009Mazda32.3LL4Intermediatew/ California Emissions; Bank 1 Sensor 2; Located After Primary Catalyst;
2009Mazda32.3LL4Downstreamw/ California Emissions; Bank 1 Sensor 3; Located After Secondary Catalyst;
2009Mazda32.0LL4Intermediatew/ California Emissions; Bank 1 Sensor 2; Center Sensor; Located After Primary Catalyst;
2009Mazda32.0LL4Downstreamw/ California Emissions; Bank 1 Sensor 3; Located After Secondary Catalyst;
2009Mazda3 Sport2.0LL4Intermediatew/ California Emissions; Bank 1 Sensor 2; Center Sensor; Located After Primary Catalyst;
2009Mazda3 Sport2.0LL4Downstreamw/ California Emissions; Bank 1 Sensor 3; Located After Secondary Catalyst;
2008Mazda32.3LL4Intermediatew/ California Emissions; Bank 1 Sensor 2; Located After Primary Catalyst;
2008Mazda32.3LL4Downstreamw/ California Emissions; Bank 1 Sensor 3; Located After Secondary Catalyst;
2008Mazda32.0LL4Intermediatew/ California Emissions; Bank 1 Sensor 2; Center Sensor; Located After Primary Catalyst;
2008Mazda32.0LL4Downstreamw/ California Emissions; Bank 1 Sensor 3; Located After Secondary Catalyst;
2008Mazda6Automatic2.3LL4Downstreamw/ California Emissions; Bank 1 Sensor 3; Located After Secondary Catalyst;
2007Mazda32.3LL4DownstreamLocated After Primary Catalytic Converter; w/ California Emissions; Located After Secondary Catalytic Converter; w/ California Emissions
2007Mazda32.0LL4DownstreamLocated After Primary Catalytic Converter; w/ California Emissions; Located After Secondary Catalytic Converter; w/ California Emissions
2007Mazda6Automatic2.3LL4DownstreamLocated After Secondary Catalytic Converter; w/ California Emissions
2006Mazda32.3LL4DownstreamLocated After Primary Catalytic Converter; w/ California Emissions; Located After Secondary Catalytic Converter; w/ California Emissions
2006Mazda32.0LL4DownstreamLocated After Primary Catalytic Converter; w/ California Emissions; Located After Secondary Catalytic Converter; w/ California Emissions
2006Mazda6Automatic2.3LL4DownstreamLocated After Secondary Catalytic Converter; w/ California Emissions
2005Mazda32.0LL4DownstreamLocated After Primary Catalytic Converter; w/ California Emissions; Located After Secondary Catalytic Converter; w/ California Emissions
2004Mazda32.0LL4DownstreamLocated After Primary Catalytic Converter; w/ California Emissions; Located After Secondary Catalytic Converter; w/ California Emissions

* 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:

15371157721591415916159202344329256705S100035S100105S83105S8312753492753494754012754017ES20362L32F18861L32F18861AL39718861L39718861ALF6718861LF6718861ALF6718861A9ULF6918861ALF6918861BLF6918861DLF6918861D9USG1669SG1669TSG1677SG1677TSU11456SU11463SU9775SU9777

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