HomeWalker 245-1258 Mass Air Flow Sensor
Part #: 245-1258

Walker 245-1258 Mass Air Flow Sensor

Walker Mass Air Flow Sensor
29 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Mass Air Flow Sensor
Fitment: INFINITI and Nissan, Q50, Q70, QX60, Altima, Murano, Sentra, Pathfinder, and M35h
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Overview of Walker Mass Air Flow Sensor 245-1258

The Walker Mass Air Flow Sensor 245-1258 is designed for precise air measurement in select INFINITI and Nissan vehicles. This sensor helps maintain optimal engine performance by accurately monitoring the amount of air entering the engine.

  • Compatible with INFINITI and Nissan models including Altima, M35h, Murano, Pathfinder, Q50, Q70, QX60, and Sentra
  • Includes mounting hardware for straightforward installation
  • Features a 5-terminal female connector for reliable electrical connection
  • Housing not included, designed to integrate with existing engine components

Walker Mass Air Flow Sensor Product Line Details

The Walker Mass Air Flow Sensor line focuses on delivering precise airflow measurement components for emission control systems. The 245-1258 sensor is part of this line, engineered to meet OEM specifications for accurate sensor readings and durability. This product line supports emission control by ensuring the engine control unit receives accurate airflow data, which is critical for fuel management and emissions regulation.

Detailed Product Description

The Walker 245-1258 mass air flow sensor is engineered to provide accurate airflow data to the engine control module in various INFINITI and Nissan vehicles. It features a 5-terminal female connector that ensures secure and consistent electrical connectivity. While the sensor does not include a housing, it comes with mounting hardware to facilitate proper installation. This sensor is compatible with models such as the Nissan Altima, Murano, Pathfinder, Sentra, and INFINITI Q50, Q70, QX60, and M35h, making it a versatile choice for emission control sensor replacement.

Common Applications and Issues Addressed

  • Restores accurate air intake measurement for improved engine performance
  • Helps resolve rough idling and engine hesitation caused by faulty airflow readings
  • Supports reduction of emission system errors and check engine light triggers
  • Assists in correcting poor fuel economy related to air-fuel mixture imbalance
  • Prevents stalling and acceleration problems linked to mass air flow sensor failure

Installation Notes and Tips

Installation of the Walker Mass Air Flow Sensor 245-1258 requires removal of the old sensor and securing the new unit using the included mounting hardware. Ensure the 5-terminal female connector is properly aligned and fully seated to avoid electrical issues. Since the housing is not included, verify the existing housing is intact and compatible before installation. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Walker sensors are manufactured to meet or exceed OEM standards for durability and performance. The 245-1258 mass air flow sensor undergoes rigorous quality control to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier, as it may vary.

BrandWalker
Part Number245-1258
PositionWalker Mass Air Flow Sensor
Connector GenderFemale
Housing IncludedNo
Mounting Hardware IncludedYes
Terminal Quantity5

This part fits 29 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019INFINITIQ503.5LV6N/ASensor Only
2018INFINITIQ503.5LV6N/AWalker Mass Air Flow Sensor
2018INFINITIQ703.5LV6N/AWalker Mass Air Flow Sensor
2017INFINITIQ503.5LV6N/AWalker Mass Air Flow Sensor
2017INFINITIQ703.5LV6N/AWalker Mass Air Flow Sensor
2017INFINITIQX602.5LL4N/AWalker Mass Air Flow Sensor
2017INFINITIQX603.5LV6N/AWalker Mass Air Flow Sensor
2016INFINITIQ503.5LV6N/AWalker Mass Air Flow Sensor
2016INFINITIQ703.5LV6N/AWalker Mass Air Flow Sensor
2016INFINITIQX602.5LL4N/AWalker Mass Air Flow Sensor
2016NissanAltima2.5LL4N/AFits vehicles up to October 2015; Walker Mass Air Flow Sensor
2016NissanMurano2.5LL4N/AWalker Mass Air Flow Sensor
2016NissanSentra1.8LL4N/AFits vehicles up to December 2015; Walker Mass Air Flow Sensor
2015INFINITIQ503.5LV6N/AWalker Mass Air Flow Sensor
2015INFINITIQ703.5LV6N/AWalker Mass Air Flow Sensor
2015INFINITIQX602.5LL4N/AWalker Mass Air Flow Sensor
2015NissanAltima2.5LL4N/AWalker Mass Air Flow Sensor
2015NissanPathfinder2.5LL4N/AWalker Mass Air Flow Sensor
2015NissanSentra1.8LL4N/AWalker Mass Air Flow Sensor
2014INFINITIQ503.5LV6N/AWalker Mass Air Flow Sensor
2014INFINITIQ703.5LV6N/AWalker Mass Air Flow Sensor
2014INFINITIQX602.5LL4N/AWalker Mass Air Flow Sensor
2014NissanAltima2.5LL4N/AWalker Mass Air Flow Sensor
2014NissanPathfinder2.5LL4N/AWalker Mass Air Flow Sensor
2014NissanSentra1.8LL4N/AWalker Mass Air Flow Sensor
2013INFINITIM35h3.5LV6N/AWalker Mass Air Flow Sensor
2013NissanAltima2.5LL4N/AWalker Mass Air Flow Sensor
2013NissanSentra1.8LL4N/AWalker Mass Air Flow Sensor
2012INFINITIM35h3.5LV6N/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:

226801MG0AMA321MAF0102MAS0339

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