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Part #: 245-1262

Walker 245-1262 Mass Air Flow Sensor

Walker Mass Air Flow Assembly
17 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 Assembly
Fitment: BMW, X5, 545i, 645Ci, 745i, and 745Li
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 245-1262

The Walker Mass Air Flow Assembly 245-1262 is designed for precise air measurement in select BMW models. This sensor ensures accurate airflow data for optimal engine performance and emission control.

  • Compatible with BMW 545i, 645Ci, 745i, 745Li, and X5 models
  • Includes mounting hardware for secure installation
  • Features a 5-terminal female connector for reliable electrical connection
  • Housing not included, designed for direct replacement

Walker Mass Air Flow Assembly Product Line Details

The Walker Mass Air Flow Assembly product line focuses on emission control sensors that deliver consistent and accurate airflow readings. This line supports emission compliance and engine efficiency by providing components engineered to meet OEM specifications. The 245-1262 sensor is part of this line, ensuring compatibility and performance for BMW vehicles requiring precise mass air flow measurement.

Product Description and Attributes

The Walker 245-1262 mass air flow sensor is engineered without a housing, allowing it to fit directly into the existing assembly on compatible BMW models. It comes with mounting hardware included, facilitating a straightforward replacement process. The sensor features a 5-terminal female connector, which ensures a secure and stable electrical connection with the vehicle’s wiring harness. This part is specifically designed for BMW 545i, 645Ci, 745i, 745Li, and X5 models, providing accurate airflow data critical for engine management and emission control systems.

Common Applications and Issues Addressed

  • Restores accurate air intake measurement for improved fuel efficiency
  • Resolves engine hesitation or stalling related to faulty airflow readings
  • Helps correct rough idling caused by sensor malfunction
  • Supports emission system compliance by providing precise airflow data
  • Eliminates check engine light triggers related to mass air flow sensor faults

Installation Notes and Tips

Installation of the Walker 245-1262 sensor 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 in good condition before installation. It is recommended to disconnect the vehicle battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Walker mass air flow sensors are manufactured to meet or exceed OEM standards for durability and performance. The 245-1262 part number undergoes rigorous quality control to ensure reliable operation in BMW vehicles. While specific warranty details are not provided here, Walker products typically come with a limited warranty covering defects in materials and workmanship.

BrandWalker
Part Number245-1262
PositionWalker Mass Air Flow Assembly
Connector GenderFemale
Housing IncludedNo
Mounting Hardware IncludedYes
Terminal Quantity5

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006BMW545i4.4LV8N/AComplete Assembly
2006BMWX54.8LV8N/AWalker Mass Air Flow Assembly
2006BMWX54.4LV8N/AWalker Mass Air Flow Assembly
2005BMW545i4.4LV8N/AWalker Mass Air Flow Assembly
2005BMW645Ci4.4LV8N/AWalker Mass Air Flow Assembly
2005BMW745i4.4LV8N/AWalker Mass Air Flow Assembly
2005BMW745Li4.4LV8N/AWalker Mass Air Flow Assembly
2005BMWX54.8LV8N/AWalker Mass Air Flow Assembly
2005BMWX54.4LV8N/AWalker Mass Air Flow Assembly
2004BMW545i4.4LV8N/AWalker Mass Air Flow Assembly
2004BMW645Ci4.4LV8N/AWalker Mass Air Flow Assembly
2004BMW745i4.4LV8N/AWalker Mass Air Flow Assembly
2004BMW745Li4.4LV8N/AWalker Mass Air Flow Assembly
2004BMWX54.8LV8N/AWalker Mass Air Flow Assembly
2004BMWX54.4LV8N/AWalker Mass Air Flow Assembly
2003BMW745i4.4LV8N/AFits vehicles manufactured from September 2003.; Walker Mass Air Flow Assembly
2003BMW745Li4.4LV8N/AFits vehicles manufactured from September 2003.; Walker Mass Air Flow Assembly

* 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:

1362752413613627566988197355S560464182574101299171018MA437MAS0413SU7107

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