HomeEmission Control > SensorsWalker 250-241209 Oxygen Sensor - Downstream Rear
Part #: 250-241209

Walker 250-241209 Oxygen Sensor - Downstream Rear

Walker Products OE, Downstream Rear
⚙️ 29 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products OE, Downstream Rear
🚗Fitment: Toyota, Sienna
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Overview of Walker Oxygen Sensor for Toyota Sienna

The Walker Products OE Oxygen Sensor 250-241209 is designed specifically for Toyota Sienna models, providing reliable emission control performance. This sensor helps maintain optimal engine efficiency by accurately monitoring exhaust gases.

  • Compatible with Toyota Sienna vehicles
  • Part number 250-241209 ensures precise fitment
  • Part of the Walker Products OE line for original equipment quality
  • Category: Emission Control > Sensors
  • Type: Oxygen Sensor for accurate air-fuel mixture readings

About the Walker Products OE Line

The Walker Products OE line focuses on delivering components that meet original equipment specifications. This ensures that the oxygen sensor 250-241209 maintains the performance and durability expected from factory-installed parts. Using a sensor from this line supports consistent emission control and engine management in your Toyota Sienna.

Product Description and Function

The Walker oxygen sensor 250-241209 is engineered to monitor the oxygen levels in the exhaust system of Toyota Sienna vehicles. By providing real-time data to the engine control unit, it helps regulate the air-fuel ratio for efficient combustion and reduced emissions. This sensor plays a critical role in maintaining compliance with emission standards and optimizing fuel economy.

Common Issues Addressed by This 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

When installing the Walker oxygen sensor 250-241209 on a Toyota Sienna, ensure the vehicle is cool to avoid burns. Use appropriate tools to avoid damaging the sensor or wiring harness. It is recommended to inspect the wiring and connectors for corrosion or damage before installation. Proper torque specifications should be followed to secure the sensor without over-tightening.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details for part number 250-241209 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation for exact warranty terms.

This part fits 29 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2020ToyotaSiennaXLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaXLE Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaSE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaSE Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaLimited3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaLimited Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2020ToyotaSiennaL3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaXLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaXLE Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaSE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaSE Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaLimited3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaLimited Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2019ToyotaSiennaL3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaXLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaXLE Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaSE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaSE Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaLimited3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaLimited Premium3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2018ToyotaSiennaL3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2017ToyotaSiennaXLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2017ToyotaSiennaSE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2017ToyotaSiennaLimited3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2017ToyotaSiennaLE3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; Walker Products OE
2017ToyotaSiennaL3.5LV6GASDownstream RearRear downstream oxygen sensor must be installed in correct position.; 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.