HomeEmission Control > SensorsWalker 250-24499 Oxygen Sensor - Downstream Left
Part #: 250-24499

Walker 250-24499 Oxygen Sensor - Downstream Left

Walker Products OE, Downstream Left
1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Downstream Left
Fitment: INFINITI, Q45
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 250-24499

The Walker Products OE Oxygen Sensor 250-24499 is designed specifically for the INFINITI Q45, ensuring precise emission control and optimal engine performance. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

  • Heated oxygen sensor for accurate emissions monitoring
  • Specific fit for INFINITI Q45 models
  • Threaded mounting with 18.0 mm thread diameter
  • 21.97-inch wiring harness length with 4 wires of 20 gauge
  • Radiused polygon female connector for reliable connection
  • Overall length of 25.51 inches for proper fitment

Detailed Product Description

This Walker Products OE oxygen sensor (part number 250-24499) is engineered to meet the exact specifications of the INFINITI Q45. The sensor is heated, which allows it to reach operating temperature quickly, improving fuel efficiency and reducing emissions. It includes a 21.97-inch wiring harness with four 20-gauge wires, providing a robust electrical connection. The radiused polygon female connector ensures a secure and precise fit, minimizing the risk of disconnection or signal loss. The threaded mounting type with an 18.0 mm diameter allows for straightforward installation and compatibility with the vehicle’s exhaust system. The overall length of 25.51 inches supports proper placement within the engine bay.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering original equipment quality parts designed to meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring it matches the performance and durability expected by vehicle manufacturers. Using a Walker Products OE sensor helps maintain the integrity of the emission control system on your INFINITI Q45.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for engine control units
  • Helps resolve rough idling and poor fuel economy
  • Reduces emissions by ensuring proper air-fuel mixture
  • Prevents check engine light triggers related to oxygen sensor faults
  • Improves overall engine performance and responsiveness

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-24499 on an INFINITI Q45, ensure the threaded mounting hole is clean and free of debris. Use anti-seize compound on the threads to prevent seizing but avoid contaminating the sensor tip. Connect the radiused polygon female connector firmly to the vehicle’s wiring harness. Verify the wiring harness length and connector orientation before final installation to avoid strain or damage.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-24499 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.

BrandWalker
Part Number250-24499
PositionWalker Products OE, Downstream Left
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length25.51
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity4
Wiring Harness Length21.97

This part fits 1 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1996INFINITIQ454.5LV8GASDownstream LeftDownstream left 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.