HomeEmission Control > SensorsWalker 250-24434 Oxygen Sensor - Center or Downstream
Part #: 250-24434

Walker 250-24434 Oxygen Sensor - Center or Downstream

Walker Products OE, Center
10 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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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Center
Fitment: Nissan and INFINITI, Sentra, G20, and Altima
Easy Returns — Return within 60 days for a full refund
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Overview of Walker 250-24434 Oxygen Sensor

The Walker 250-24434 oxygen sensor is designed specifically for select INFINITI and Nissan vehicles, including the Altima, G20, and Sentra models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated sensor type for faster response times
  • Specific fit for INFINITI and Nissan Altima, G20, Sentra
  • 11.73-inch wiring harness length with 4 wires
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Overall length of 15.28 inches for proper installation
  • 20 gauge wire for reliable signal transmission

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24434) is engineered to meet the exact specifications of your vehicle’s original equipment. Featuring a heated sensor element, it provides quicker warm-up times, which helps reduce emissions during cold starts. The sensor includes a radiused polygon male connector and a threaded mounting type with an 18.0 mm thread diameter, ensuring a precise and secure fit. The wiring harness length of 11.73 inches and four-wire configuration with 20 gauge wire supports reliable electrical connections and signal accuracy. The overall length of 15.28 inches accommodates proper placement within the exhaust system of INFINITI and Nissan Altima, G20, and Sentra models.

Walker Products OE Brand Line

The Walker Products OE line focuses on delivering emission control components that match original equipment specifications. This oxygen sensor is part of that line, providing a direct replacement solution designed to maintain factory performance and emissions compliance for your INFINITI or Nissan vehicle.

Common Applications and Issues Addressed

  • Helps resolve rough idling caused by faulty oxygen sensors
  • Improves fuel efficiency by providing accurate air-fuel mixture data
  • Reduces emissions by ensuring proper catalytic converter function
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports smooth engine performance and drivability

Installation Notes and Tips

When installing the Walker 250-24434 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads if recommended by the vehicle manufacturer to prevent seizing. Verify the connector matches the radiused polygon male shape for a secure electrical connection. Proper torque specifications should be followed to avoid damage to the sensor or exhaust components.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to ensure reliability in emission control applications.

BrandWalker
Part Number250-24434
PositionWalker Products OE, Center
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length15.28
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length11.73

This part fits 10 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2002NissanSentraCA1.8LL4GASCenterCalif-ESV, Center Oxygen Sensor; Walker Products OE
2001INFINITIG202.0LL4GASDownstreamTo 01/01; B1S2; Al 01/01; Downstream; Walker Products OE
2001INFINITIG202.0LL4GASDownstreamTo 01/01; Al 01/01; Downstream; B1S2; Walker Products OE
2001INFINITIG202.0LL4GASDownstream01/01 B1S2 Downstream Oxygen Sensor; Walker Products OE
2001NissanSentraCA1.8LL4GASDownstreamCA Series; Serie CA; Downstream; Walker Products OE
2001NissanSentraCA1.8LL4GASDownstreamCA Series; Downstream; Walker Products OE
2000INFINITIG202.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2000NissanAltima2.4LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
2000NissanSentra1.8LL4GASDownstreamCA Series; Serie CA; Downstream; Walker Products OE
2000NissanSentra1.8LL4GASDownstreamCA Series; Downstream; 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.