HomeEmission Control > SensorsWalker 250-24284 Oxygen Sensor - Center, Downstream Front or Downstream Right
Part #: 250-24284

Walker 250-24284 Oxygen Sensor - Center, Downstream Front or Downstream Right

Walker Products OE, Downstream Front
⚙️ 16 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 Front
🚗Fitment: INFINITI and Nissan, I30, Maxima, and Sentra
🔄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 250-24284

The Walker Products OE Oxygen Sensor 250-24284 is designed specifically for select INFINITI and Nissan vehicles, including the I30, Maxima, and Sentra models. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases effectively.

  • Heated oxygen sensor with 4-wire design for precise readings
  • Specific fit for INFINITI I30 and Nissan Maxima, Sentra
  • 33.78-inch wiring harness length for flexible installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • Wire gauge measurement of 20 for durability and signal integrity
  • Overall length of 37.32 inches for proper fitment

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE features a heated sensor type that allows for faster warm-up times and improved fuel efficiency. The 4-wire configuration supports both the sensor signal and heater circuit, ensuring reliable operation. The wiring harness length of 33.78 inches provides ample reach for installation in the engine bay, while the 20-gauge wire ensures durability and consistent signal transmission. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with the exhaust system of the specified vehicles. The radiused polygon male connector is designed for a secure and precise fit, reducing the risk of connection issues.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on delivering original equipment quality emission control components. This oxygen sensor is engineered to meet or exceed OEM specifications, providing a direct replacement for factory-installed sensors on INFINITI and Nissan vehicles. The OE line emphasizes fit, form, and function to maintain vehicle emissions compliance and engine performance.

Common Applications and Problem Resolution

  • Restores accurate oxygen sensing for proper air-fuel mixture control
  • Helps resolve check engine light issues related to oxygen sensor faults
  • Improves fuel economy by ensuring correct sensor feedback
  • Reduces harmful emissions by maintaining proper exhaust monitoring
  • Prevents engine performance problems caused by faulty sensors

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-24284, ensure the vehicle is compatible with the part by verifying make and model fitment (INFINITI I30, Nissan Maxima, Sentra). Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. The threaded mounting requires proper torque to prevent exhaust leaks. Confirm the radiused polygon male connector is fully seated to maintain electrical integrity. It is recommended to inspect the exhaust system for leaks or damage during installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. This part number 250-24284 undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship to support long-term use in compatible INFINITI and Nissan vehicles.

BrandWalker
Part Number250-24284
PositionWalker Products OE, Downstream Front
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length37.32
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length33.78

This part fits 16 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2001INFINITII303.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
2001NissanMaxima3.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
2001NissanSentraXE1.8LL4GASDownstream RightExc.CA Series, w/o Mid Year Emissions, Downstream, Right.; Walker Products OE
2001NissanSentraGXE1.8LL4GASDownstream RightExc.CA Series, w/o Mid Year Emissions, Downstream, Right.; Walker Products OE
2001NissanSentraCA1.8LL4GASCenterCA Series; Serie CA; Center; Walker Products OE
2001NissanSentraXE1.8LL4GASDownstream RightExc.CA Series, w/o Mid Year Emissions; Downstream; Right; Walker Products OE
2001NissanSentraGXE1.8LL4GASDownstream RightExc.CA Series, w/o Mid Year Emissions; Downstream; Right; Walker Products OE
2001NissanSentraCA1.8LL4GASCenterCA Series; Center; Walker Products OE
2000INFINITII303.0LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
2000NissanMaxima3.0LV6GASDownstream FrontDownstream front oxygen sensor for California emissions vehicles.; Walker Products OE
2000NissanSentra1.8LL4GASCenterCA Series; Serie CA; Center; Walker Products OE
2000NissanSentra1.8LL4GASCenterCA Series; Center; Walker Products OE
1999INFINITII303.0LV6GASDownstream FrontDownstream front oxygen sensor for California emissions vehicles.; Walker Products OE
1999NissanMaxima3.0LV6GASDownstream FrontDownstream front oxygen sensor for California emissions vehicles.; Walker Products OE
1998NissanMaxima3.0LV6GASDownstream FrontFrom 6/98 , Calif-ESV; Del 6/98, Calif-ESV; Downstream; Front; Walker Products OE
1998NissanMaxima3.0LV6GASDownstream Front6/98 - Calif-ESV; Downstream; Front; 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.