HomeEmission Control > SensorsWalker 250-24457 Oxygen Sensor - Downstream Front
Part #: 250-24457

Walker 250-24457 Oxygen Sensor - Downstream Front

Walker Products OE, Downstream Front
4 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 Front
Fitment: Nissan, Altima
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Overview of Walker 250-24457 Oxygen Sensor for Nissan Altima

The Walker Products OE 250-24457 oxygen sensor is designed specifically for Nissan Altima models, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon male connector for secure installation.

  • Heated oxygen sensor with 4 wires for accurate readings
  • Specific fit for Nissan Altima vehicles
  • Threaded mounting with 18.0 mm thread diameter
  • 11.73 inches wiring harness length and 15.28 inches overall length
  • 20 gauge wire measurement for durability and signal integrity
  • Radiused polygon male connector for reliable connection

Detailed Product Description

The Walker Products OE 250-24457 oxygen sensor is engineered to meet the exact specifications of Nissan Altima models, providing reliable emission control sensor performance. This heated sensor type improves warm-up time and sensor responsiveness, contributing to better fuel efficiency and reduced emissions. The sensor includes a 4-wire configuration with 20 gauge wiring, ensuring stable signal transmission. Its 11.73-inch wiring harness length and 15.28-inch overall length allow for proper fitment and ease of installation. The radiused polygon male connector and threaded mounting with an 18.0 mm diameter provide a secure and precise fit, minimizing the risk of leaks or connection issues.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on delivering original equipment quality parts that meet or exceed OEM standards. This oxygen sensor from the Walker Products OE line is designed to provide the same fit, form, and function as the factory-installed sensor in Nissan Altima vehicles, ensuring compatibility and reliable performance in emission control systems.

Common Applications and Issues Addressed

  • Replacement for faulty or failing oxygen sensors in Nissan Altima
  • Helps resolve engine performance issues related to incorrect air-fuel mixture
  • Reduces emissions by providing accurate oxygen level readings
  • Prevents check engine light triggers related to sensor malfunction
  • Improves fuel economy by enabling proper engine management

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns. Disconnect the battery to prevent electrical shorts. Carefully remove the old sensor using an oxygen sensor socket, taking care not to damage the wiring harness. Install the Walker 250-24457 sensor by threading it into place with the 18.0 mm diameter threaded mount, and connect the radiused polygon male connector securely. Verify wiring harness length and routing to avoid interference with moving parts.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet stringent quality standards, ensuring durability and reliable operation. While specific warranty details may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to product documentation for exact warranty terms.

BrandWalker
Part Number250-24457
PositionWalker Products OE, Downstream Front
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 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2004NissanAltima3.5LV6GASDownstream FrontTo 1/2004; Al 1/2004; Downstream; Front; Walker Products OE
2004NissanAltima3.5LV6GASDownstream FrontTo fit vehicles up to January 2004, downstream in the front position.; Walker Products OE
2003NissanAltima3.5LV6GASDownstream FrontDownstream front oxygen sensor required.; Walker Products OE
2002NissanAltima3.5LV6GASDownstream FrontDownstream front oxygen sensor required.; 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.