HomeEmission Control > SensorsWalker 250-241219 Oxygen Sensor - Downstream, Downstream Left or Downstream Right
Part #: 250-241219

Walker 250-241219 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker Products OE, Downstream Left
61 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream Left
Fitment: Nissan and INFINITI, Armada, Rogue, Q50, Q60, and QX80
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Overview of Walker Products OE Oxygen Sensor 250-241219

The Walker Products OE Oxygen Sensor 250-241219 is designed for precise emission control in select INFINITI and Nissan vehicles. This sensor helps maintain optimal engine performance and reduces harmful emissions by accurately monitoring oxygen levels in the exhaust system.

  • Compatible with INFINITI Armada, Q50, Q60, QX80, and Nissan Rogue models
  • Part number 250-241219 ensures exact fit and function
  • OE-quality sensor for reliable emission control
  • Designed to meet or exceed original equipment specifications
  • Supports efficient fuel management and engine operation

Product Line Details: Walker Products OE

The Walker Products OE line focuses on providing original equipment quality parts that meet strict manufacturing standards. This oxygen sensor is part of that line, ensuring compatibility and performance consistent with factory-installed components. Using a Walker Products OE sensor helps maintain the integrity of your vehicle’s emission system and supports compliance with environmental regulations.

Detailed Product Description

The Walker 250-241219 oxygen sensor is engineered to deliver accurate readings of the oxygen content in the exhaust gases of INFINITI and Nissan vehicles. By providing real-time data to the engine control unit, it enables precise air-fuel mixture adjustments, which are critical for efficient combustion and reduced emissions. This sensor is specifically compatible with INFINITI Armada, Q50, Q60, QX80, and Nissan Rogue models, ensuring a proper fit and function without modification.

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
  • Supports emission system compliance and reduces exhaust pollutants
  • Improves overall engine performance and responsiveness

Installation Notes and Tips

When installing the Walker 250-241219 oxygen sensor, ensure the vehicle is cool to avoid burns. Use an oxygen sensor socket for proper removal and installation to prevent damage. Verify the sensor’s connector matches the vehicle harness before installation. It is recommended to check for any exhaust leaks and clean the mounting area to ensure accurate sensor readings.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed original equipment standards, providing reliable performance and durability. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Using this sensor helps maintain your vehicle’s emission system integrity and supports long-term engine health.

This part fits 61 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2024INFINITIQ503.0LV6Downstream RightOE Base Sensor
2024INFINITIQX805.6LV8Downstream RightOE Base Sensor
2024NissanArmada5.6LV8Downstream RightOE Base Sensor
2023INFINITIQ503.0LV6Downstream RightOE Base Sensor
2023INFINITIQX805.6LV8Downstream RightOE Base Sensor
2023NissanArmada5.6LV8Downstream RightOE Base Sensor
2022INFINITIQ503.0LV6Downstream RightOE Base Sensor
2022INFINITIQ603.0LV6Downstream RightOE Base Sensor
2022INFINITIQX805.6LV8Downstream RightOE Base Sensor
2022NissanArmada5.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2022NissanArmada5.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2022NissanRogue1.5LL3GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2021INFINITIQ503.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2021INFINITIQ503.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2021INFINITIQ60Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2021INFINITIQ60Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2021INFINITIQ603.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2021INFINITIQ603.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2021INFINITIQX805.6LV8GASDownstream Right09/2019 Downstream Right; Walker Products OE
2021INFINITIQX805.6LV8GASDownstream Left09/2019 Downstream Left; Walker Products OE
2021NissanArmada5.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2021NissanArmada5.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2021NissanRogue2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2020INFINITIQ503.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020INFINITIQ503.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020INFINITIQ60Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020INFINITIQ60Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020INFINITIQ603.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020INFINITIQ603.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2020INFINITIQX805.6LV8GASDownstream RightFrom 09/2019; Downstream; Right; Walker Products OE
2020INFINITIQX805.6LV8GASDownstream LeftFrom 09/2019; Downstream; Left; Walker Products OE
2020NissanArmada5.6LV8GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2020NissanArmada5.6LV8GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019INFINITIQ50Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019INFINITIQ50Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019INFINITIQ503.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019INFINITIQ503.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019INFINITIQ60Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019INFINITIQ60Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2019INFINITIQ603.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2019INFINITIQ603.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018INFINITIQ50Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018INFINITIQ50Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018INFINITIQ503.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018INFINITIQ503.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018INFINITIQ60Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018INFINITIQ60Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2018INFINITIQ603.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2018INFINITIQ603.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2017INFINITIQ50Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2017INFINITIQ50Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2017INFINITIQ503.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2017INFINITIQ503.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2017INFINITIQ60Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2017INFINITIQ60Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2017INFINITIQ603.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2017INFINITIQ603.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2016INFINITIQ50Red Sport 4003.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2016INFINITIQ50Red Sport 4003.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE
2016INFINITIQ503.0LV6GASDownstream RightInstall downstream oxygen sensor on the right side.; Walker Products OE
2016INFINITIQ503.0LV6GASDownstream LeftDownstream left oxygen sensor required.; Walker Products OE

* 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:

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