Spectra OS5455 Oxygen Sensor - Downstream

Brand Spectra OS5455
Position Downstream
Fits Mazda · 9 vehicles

OE-level performance. Built to meet or exceed original equipment standards for dependable sensor output.

Downstream sensor. Supports exhaust monitoring in the emissions control system.

Cross-references Bosch 15253, Delphi ES20390 and Dorman - HELP 15790 for the same application. See all 26.

$31.51Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

Spectra OS5455 is a downstream oxygen sensor for select Mazda applications with Federal Emissions. It is built to match original equipment performance targets and supports accurate exhaust monitoring for the vehicle’s emissions system.

Key Features

  • Downstream oxygen sensor for emissions-system monitoring
  • Engineered to meet or exceed original equipment performance
  • Fits Mazda 3 and Mazda 3 Sport applications with Federal Emissions
  • Part number OS5455 for direct catalog identification

Fitment Details

Fits 2008-2009 Mazda 3, downstream, w/ Federal Emissions; Bank 1 Sensor 2.

Fits 2009 Mazda 3 Sport, downstream, w/ Federal Emissions; Bank 1 Sensor 2.

Fits 2006-2007 Mazda 3, downstream, For vehicles with Federal Emissions.

What It Helps Address

  • Faulty oxygen sensor readings
  • Emissions warning lights related to sensor performance
  • Incorrect exhaust feedback to the engine control system
  • Replacement needs for a worn downstream sensor

Installation Notes

Verify the vehicle’s emissions configuration and sensor location before ordering. Confirm the connector and application details against the existing part number OS5455 and the vehicle’s service information.

Quality Assurance

Spectra Premium uses engineering, manufacturing technology, and quality control processes to produce oxygen sensors that meet or exceed original equipment performance standards.

This part fits 9 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2009Mazda32.3LL4Downstreamw/ Federal Emissions; Bank 1 Sensor 2
2009Mazda32.0LL4Downstreamw/ Federal Emissions; Bank 1 Sensor 2
2009Mazda3 Sport2.0LL4Downstreamw/ Federal Emissions; Bank 1 Sensor 2
2008Mazda32.3LL4Downstreamw/ Federal Emissions; Bank 1 Sensor 2
2008Mazda32.0LL4Downstreamw/ Federal Emissions; Bank 1 Sensor 2
2007Mazda32.3LL4DownstreamFor vehicles with Federal Emissions.
2007Mazda32.0LL4DownstreamFor vehicles with Federal Emissions.
2006Mazda32.3LL4DownstreamFor vehicles with Federal Emissions.
2006Mazda32.0LL4DownstreamFor vehicles with Federal Emissions.
Directly replaces or cross-references 26 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15253Delphi — ES20390Dorman - HELP — 15790Gates — 24446Pioneer Automotive Industries — 7540255S100025S100187540112344392L32D18861L32D18861AL32D18861A9UL32D18861BL32D18861CL32D18861DL32D18861D9ULFL818861LFL818861ALFL818861CLFL8188619USG1737SG1737TSG1739SG1739TSU11455SU11471