HomeBeck Arnley 158-1545 Mass Air Flow Sensor
Part #: 158-1545

Beck Arnley 158-1545 Mass Air Flow Sensor

6 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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Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: INFINITI and Nissan, Pathfinder and QX4
Easy Returns — Return within 60 days for a full refund
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Reliable Mass Air Flow Sensor for Nissan Pathfinder and Infiniti QX4

The Beck Arnley 158-1545 Mass Air Flow Sensor is designed to provide accurate airflow measurement for your Nissan Pathfinder or Infiniti QX4. This sensor helps maintain optimal engine performance by monitoring the amount of air entering the engine.

  • Compatible with Nissan Pathfinder and Infiniti QX4 models
  • Part number 158-1545 ensures precise fitment and function
  • Monitors air intake to optimize fuel injection and engine efficiency
  • Manufactured by Beck Arnley, a trusted name in emission control sensors
  • Contains lead as a chemical component, requiring proper handling during installation

Detailed Product Description

The Beck Arnley 158-1545 Mass Air Flow Sensor is an essential component in the emission control system of select Nissan and Infiniti vehicles. Specifically engineered for the Nissan Pathfinder and Infiniti QX4, this sensor measures the volume and density of air entering the engine. Accurate airflow data is critical for the engine control unit (ECU) to adjust fuel delivery, ensuring efficient combustion and reduced emissions. The presence of lead in the sensor's chemical composition highlights the importance of careful handling and disposal in accordance with environmental regulations.

Common Applications and Issues Addressed

  • Restores proper air-fuel mixture for improved engine performance
  • Resolves rough idling and engine hesitation caused by faulty airflow readings
  • Helps reduce increased fuel consumption linked to sensor malfunction
  • Addresses check engine light triggers related to mass air flow sensor errors
  • Supports emission control compliance by providing accurate sensor data

Installation Notes and Tips

When installing the Beck Arnley 158-1545 Mass Air Flow Sensor on your Nissan Pathfinder or Infiniti QX4, ensure the sensor connector is securely attached and free of corrosion. Handle the sensor carefully to avoid damage to the sensitive components, especially considering the lead content. It is recommended to follow vehicle-specific service manuals for torque specifications and sensor calibration procedures.

Quality Assurance and Warranty

Beck Arnley maintains strict quality control standards for their emission control sensors, including the 158-1545 Mass Air Flow Sensor. While specific warranty details are not provided here, Beck Arnley products typically come with a limited warranty covering defects in materials and workmanship. For precise warranty information, consult the product documentation or authorized Beck Arnley resources.

BrandBeck Arnley
Part Number158-1545
Are You Using The Long Form WarningY
Chemical(s) at IssueLead

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2000INFINITIQX43.3LV6N/APlease confirm compatibility of Mass Air Flow Sensor with your vehicle before buying.
2000NissanPathfinder3.3LV6N/APlease confirm compatibility of Mass Air Flow Sensor with your vehicle before buying.
1999INFINITIQX43.3LV6N/APlease confirm compatibility of Mass Air Flow Sensor with your vehicle before buying.
1999NissanPathfinder3.3LV6N/APlease confirm compatibility of Mass Air Flow Sensor with your vehicle before buying.
1998INFINITIQX43.3LV6N/APlease confirm compatibility of Mass Air Flow Sensor with your vehicle before buying.
1998NissanPathfinder3.3LV6N/APlease confirm compatibility of Mass Air Flow Sensor with your vehicle before buying.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.