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Part #: 245-2156

Walker 245-2156 Mass Air Flow Sensor

Walker Mass Air Flow Sensor
3 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 Mass Air Flow Sensor
Fitment: INFINITI and Nissan, QX4 and Pathfinder
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Mass Air Flow Sensor 245-2156

The Walker Mass Air Flow Sensor 245-2156 is designed for precise air measurement in select Nissan and INFINITI vehicles. This sensor helps maintain optimal engine performance by accurately monitoring the amount of air entering the engine.

  • Compatible with INFINITI Pathfinder and Nissan QX4 models
  • Includes mounting hardware for straightforward installation
  • Features a 3-terminal female connector for reliable electrical connection
  • Housing not included, designed for direct replacement

About the Walker Mass Air Flow Sensor Product Line

The Walker Mass Air Flow Sensor line focuses on delivering accurate airflow measurement components essential for emission control systems. This product line supports emission sensors that meet OEM specifications, ensuring proper engine air-fuel mixture management. The 245-2156 sensor is part of this line, providing a dependable solution for Nissan and INFINITI vehicles requiring precise airflow data.

Detailed Product Description

The Walker 245-2156 mass air flow sensor is engineered to measure the volume and density of air entering the engine intake. It features a female connector with three terminals, ensuring compatibility with the vehicle’s wiring harness. Although the sensor does not include a housing, it comes with mounting hardware to facilitate secure installation. This sensor is specifically designed for use in INFINITI Pathfinder and Nissan QX4 models, making it a targeted replacement part for these vehicles.

Common Applications and Issues Addressed

  • Helps resolve engine performance problems related to inaccurate air measurement
  • Addresses rough idling and stalling caused by faulty mass air flow sensors
  • Improves fuel efficiency by providing accurate airflow data to the engine control unit
  • Reduces emission control errors linked to sensor malfunction
  • Prevents check engine light triggers related to air intake measurement

Installation Notes and Tips

Installation of the Walker 245-2156 sensor requires removal of the old sensor and securing the new unit using the included mounting hardware. Ensure the female connector with three terminals is properly aligned and connected to the vehicle’s wiring harness. Since the housing is not included, reuse the existing housing or verify compatibility with the vehicle’s intake system. Proper installation is critical to maintain sensor accuracy and engine performance.

Quality Assurance and Warranty

Walker products are manufactured to meet industry standards for emission control sensors. The 245-2156 mass air flow sensor undergoes quality checks to ensure reliable operation. Please refer to Walker’s official warranty policy for specific coverage details related to this part.

BrandWalker
Part Number245-2156
PositionWalker Mass Air Flow Sensor
Connector GenderFemale
Housing IncludedNo
Mounting Hardware IncludedYes
Terminal Quantity3

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997INFINITIQX43.3LV6N/AWalker Mass Air Flow Sensor
1997NissanPathfinder3.3LV6N/AWalker Mass Air Flow Sensor
1996NissanPathfinder3.3LV6N/AWalker Mass Air Flow Sensor

* 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:

105037H77450037

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.