HomeEmission Control > SensorsWalker 250-241074 Oxygen Sensor - Downstream
Part #: 250-241074

Walker 250-241074 Oxygen Sensor - Downstream

Walker Products OE, Downstream
50 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream
Fitment: Mazda, 6, CX-5, CX-9, and 3
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Products OE Oxygen Sensor 250-241074

The Walker Products OE Oxygen Sensor 250-241074 is designed specifically for select Mazda models, including the Mazda 3, Mazda 6, CX-5, and CX-9. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector, ensuring precise fitment and reliable performance.

  • Heated oxygen sensor with 4 wires for accurate readings
  • Specific fit for Mazda 3, 6, CX-5, and CX-9 models
  • Threaded mounting with 18.0 mm thread diameter
  • 25.12-inch wiring harness length for flexible installation
  • Radiused polygon female connector for secure connection
  • Wire gauge measurement of 20 for durability and signal integrity
  • Overall length of 28.66 inches for proper placement

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE is engineered with a heated sensor element to provide faster response times and improved emissions control. The 4-wire design supports both the sensor signal and heater circuit, enhancing sensor functionality. The wiring harness length of 25.12 inches allows for convenient routing in the engine bay, while the 20-gauge wire ensures reliable electrical performance. The sensor’s threaded mounting type with an 18.0 mm diameter thread guarantees a secure fit in the exhaust system. The radiused polygon female connector is designed to match factory specifications, reducing the risk of connection issues.

Walker Products OE Brand Line Information

Walker Products OE focuses on delivering emission control components that meet original equipment standards. This product line emphasizes precise fitment and durability, making it suitable for direct replacement in specific vehicle applications. The 250-241074 oxygen sensor aligns with this approach by providing a sensor tailored to Mazda vehicles, ensuring compatibility and consistent performance.

Applications and Common Issues Addressed

  • Compatible with Mazda 3, Mazda 6, CX-5, and CX-9 models requiring a specific oxygen sensor
  • Helps resolve engine performance problems related to faulty oxygen sensors
  • Addresses issues with increased emissions and failed emissions tests
  • Improves fuel efficiency by providing accurate air-fuel mixture data
  • Reduces rough idling and hesitation caused by sensor malfunctions

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-241074, ensure the engine is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the threaded mounting hole. Verify the connector shape and gender match the vehicle’s wiring harness before installation. Properly route the wiring harness to prevent contact with hot or moving parts. After installation, clear any diagnostic trouble codes and perform a test drive to confirm sensor operation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and durability. While specific warranty details for part number 250-241074 are not provided here, Walker typically offers limited warranties covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

BrandWalker
Part Number250-241074
PositionWalker Products OE, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length28.66
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length25.12

This part fits 50 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2024MazdaCX-52.5LL4DownstreamOE Base Sensor
2023MazdaCX-52.5LL4DownstreamOE Base Sensor
2022MazdaCX-52.5LL4DownstreamOE Base Sensor
2022MazdaCX-92.5LL4DownstreamOE Base Sensor
2021Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2021MazdaCX-52.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2021MazdaCX-92.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2020Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2020MazdaCX-52.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2019Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2019MazdaCX-52.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2018Mazda3Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2018Mazda3Grand Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2018Mazda3Touring2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2018Mazda3Sport2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2018Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda3Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda3Grand Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda32.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda3Touring2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda3Sport2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2017Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda3s Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda3s Grand Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda32.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda3i Grand Touring2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda3I Touring2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda3I Sport2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016MazdaCX-52.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2016MazdaCX-52.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda3s Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda3s Grand Touring2.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda32.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda3i SV2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda3i Grand Touring2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda3I Touring2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda3I Sport2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda32.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015Mazda62.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015MazdaCX-52.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2015MazdaCX-5Sport2.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014Mazda32.5LL4DownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014Mazda32.0LL4DownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014Mazda62.5LL4DownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014MazdaCX-52.5LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2014MazdaCX-52.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2013MazdaCX-52.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; 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.