HomeEmission Control > SensorsWalker 250-24226 Oxygen Sensor - Downstream
Part #: 250-24226

Walker 250-24226 Oxygen Sensor - Downstream

Walker Products OE, Downstream
10 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
Fitment: Lexus, IS300
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-24226 Oxygen Sensor for Lexus IS300

The Walker 250-24226 oxygen sensor is designed specifically for the Lexus IS300, providing precise emission control and engine performance monitoring. This heated oxygen sensor ensures accurate readings for optimal fuel efficiency and reduced emissions.

  • Heated oxygen sensor with 4 wires for reliable operation
  • Specific fit for Lexus IS300 models
  • Threaded mounting type with 18.0 mm thread diameter
  • Connector features a radiused polygon shape and male gender
  • Wiring harness length of 25.31 inches and overall length of 28.86 inches
  • Wire gauge measurement of 20 for durability and signal integrity

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-24226) is engineered with a heated sensor element to provide faster response times and more accurate oxygen level readings. The sensor includes four wires, allowing for proper heating and signal transmission. Its specific fitment to the Lexus IS300 ensures compatibility without the need for modifications. The threaded mounting type with an 18.0 mm diameter allows for secure installation in the exhaust system. The connector is designed with a radiused polygon shape and male gender to match factory wiring harnesses, simplifying replacement.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed OEM specifications. This oxygen sensor is part of that line, ensuring it matches the performance and durability standards expected by Lexus for the IS300. Using a Walker Products OE sensor helps maintain factory-level emission control and engine management system accuracy.

Common Applications and Problem Resolution

  • Restores accurate air-fuel ratio readings for the Lexus IS300
  • Helps resolve check engine light issues related to oxygen sensor faults
  • Improves fuel economy by providing precise sensor data
  • Reduces harmful emissions by ensuring proper catalytic converter function
  • Eliminates rough idling or engine hesitation caused by faulty sensors

Installation Notes and Tips

When installing the Walker 250-24226 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector shape and gender match the factory harness before installation. Thread the sensor carefully to prevent cross-threading and torque to manufacturer specifications for a secure fit.

Quality Assurance and Warranty

Walker oxygen sensors undergo rigorous testing to meet emission control standards and durability requirements. The 250-24226 sensor is manufactured to provide consistent performance throughout its service life. Please refer to Walker's warranty policy for specific coverage details.

BrandWalker
Part Number250-24226
PositionWalker Products OE, Downstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length28.86
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length25.31

This part fits 10 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2005LexusIS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products OE
2005LexusIS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products OE
2004LexusIS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products OE
2004LexusIS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products OE
2003LexusIS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products OE
2003LexusIS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products OE
2002LexusIS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products OE
2002LexusIS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; Walker Products OE
2001LexusIS3003.0LL6GASDownstreamDownstream oxygen sensor for cylinders 1-3.; Walker Products OE
2001LexusIS3003.0LL6GASDownstreamCylinder 1-3 Downstream Oxygen Sensor; 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.