HomeEmission Control > SensorsWalker 250-54129 Oxygen Sensor - Upstream Rear or Upstream Right
Part #: 250-54129

Walker 250-54129 Oxygen Sensor - Upstream Rear or Upstream Right

OE Base Sensor, Upstream Right and Upstream Rear
⚙️ 14 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Base Sensor, Upstream Right and Upstream Rear
🚗Fitment: Lexus, LC500h and LS500h
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Oxygen Sensor for Lexus LC500h and LS500h

The Walker Products OE Oxygen Sensor 250-54129 is designed specifically for Lexus hybrid models LC500h and LS500h. This sensor plays a critical role in monitoring exhaust gases to optimize engine performance and emissions control.

  • Direct replacement oxygen sensor for Lexus LC500h and LS500h
  • Part number 250-54129 ensures precise fit and function
  • Manufactured under the Walker Products OE line for reliable quality
  • Compatible with emission control systems requiring accurate oxygen sensing
  • GTIN 00724620207501 for easy identification and ordering

Product Details and Brand Line Information

The Walker Products OE line focuses on providing original equipment quality parts that meet or exceed OEM specifications. The 250-54129 oxygen sensor is engineered to deliver consistent and accurate readings, supporting the emission control system of Lexus LC500h and LS500h models. This ensures the engine management system can adjust fuel delivery efficiently, reducing emissions and maintaining optimal engine operation.

Function and Application of the Oxygen Sensor

This oxygen sensor is used to measure the oxygen content in the exhaust gases of Lexus LC500h and LS500h vehicles. It provides essential data to the engine control unit (ECU) to regulate air-fuel mixture and maintain emission standards.

  • Helps prevent rough idling and engine hesitation
  • Reduces excessive fuel consumption by optimizing combustion
  • Minimizes harmful emissions for environmental compliance
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports smooth hybrid system operation in Lexus LC500h and LS500h

Installation Notes and Tips

When installing the Walker 250-54129 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use appropriate tools to avoid damaging the sensor or wiring harness. Verify the sensor connector matches the original equipment to ensure proper electrical connection. It is recommended to clear any diagnostic trouble codes after installation to reset the ECU.

Quality Assurance and Warranty

Walker Products OE parts, including the 250-54129 oxygen sensor, are manufactured to meet stringent quality standards. While specific warranty details are not provided here, Walker typically offers coverage consistent with OEM replacement parts. This oxygen sensor is backed by Walker's commitment to durability and performance in emission control applications.

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2024LexusLC500h3.5LV6Upstream RightOE Base Sensor
2024LexusLS500h3.5LV6Upstream RearOE Base Sensor
2023LexusLC500h3.5LV6Upstream RightOE Base Sensor
2023LexusLS500h3.5LV6Upstream RightOE Base Sensor
2022LexusLC500h3.5LV6Upstream RightOE Base Sensor
2022LexusLS500h3.5LV6Upstream RightOE Base Sensor
2021LexusLC500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2021LexusLS500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2020LexusLC500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2020LexusLS500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2019LexusLC500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2019LexusLS500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018LexusLC500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE
2018LexusLS500h3.5LV6ELECTRIC/GASUpstream RightInstall upstream oxygen sensor on the right side.; Walker Products OE

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.