HomeEmission Control > SensorsSpectra OS6111 Oxygen Sensor - Downstream
Part #: OS6111

Spectra OS6111 Oxygen Sensor - Downstream

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

The Spectra OS6111 oxygen sensor is designed specifically for Mazda 3 models, providing accurate emissions monitoring and optimal engine performance. This sensor helps maintain proper air-fuel mixture for efficient combustion and reduced emissions.

  • Compatible with Mazda 3 vehicles
  • Part number OS6111 ensures exact fitment
  • Monitors oxygen levels in exhaust gases
  • Supports emission control system functionality
  • Durable construction for long service life

Product Overview and Functionality

The Spectra OS6111 oxygen sensor is an essential component in the emission control system of Mazda 3 cars. It measures the oxygen content in the exhaust stream and sends this data to the engine control unit (ECU). This information allows the ECU to adjust the air-fuel ratio for optimal combustion, improving fuel efficiency and reducing harmful emissions. The sensor is engineered to meet OEM specifications, ensuring reliable performance and compatibility with the vehicle’s existing systems.

Common Applications and Issues Addressed

  • Helps resolve rough idling and engine hesitation
  • Reduces excessive fuel consumption caused by faulty sensors
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves emission test results by maintaining proper exhaust gas composition
  • Supports smooth engine operation and responsiveness

Installation Notes and Tips

When installing the Spectra OS6111 oxygen sensor on a Mazda 3, ensure the engine is cool to avoid burns. Use an oxygen sensor socket or appropriate wrench to remove the old sensor carefully. Apply anti-seize compound to the threads of the new sensor if not pre-coated, but avoid contaminating the sensor tip. Tighten the sensor to the manufacturer’s torque specifications to prevent leaks or damage. Verify proper electrical connections before completing installation.

Quality Assurance and Warranty Information

Spectra oxygen sensors are manufactured to meet strict quality standards, ensuring durability and consistent performance. The OS6111 part undergoes rigorous testing to comply with emission control requirements. This product typically includes a limited warranty covering defects in materials and workmanship, providing confidence in its reliability for Mazda 3 owners.

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.3LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2012Mazda32.3LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2011Mazda32.3LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2010Mazda32.3LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2009Mazda32.3LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2008Mazda32.3LL4DownstreamCompatible with Bank 1 Sensor 2 Oxygen Sensor.
2007Mazda32.3LL4Downstream

* 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:

2344391244425S10005L34B18861L34B18861AL34B18861BSU11458

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