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Part #: 245-1142

Walker 245-1142 Mass Air Flow Sensor

Walker Mass Air Flow Assembly
22 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, 330xi, 330Ci, 330i, 530i, and Z3
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Overview of Walker Mass Air Flow Assembly 245-1142

The Walker Mass Air Flow Assembly 245-1142 is designed for precise air measurement in select BMW models. This mass air flow sensor ensures accurate airflow data to the engine control unit, supporting optimal engine performance and emissions control.

  • Includes housing for secure installation
  • Features 3 terminals for reliable electrical connection
  • Female connector design for compatibility with factory wiring
  • Mounting hardware not included
  • Compatible with BMW 330Ci, 330i, 330xi, 530i, X5, and Z3 models

Walker Mass Air Flow Assembly Product Line Details

The Walker Mass Air Flow Assembly product line focuses on emission control sensors that meet OEM specifications. This line provides components engineered to deliver consistent airflow measurement, which is critical for maintaining emission standards and engine efficiency. The 245-1142 sensor is part of this line, offering a housing-included design to simplify replacement in BMW vehicles.

Product Features and Specifications

This mass air flow sensor includes a housing, which protects the sensor element and facilitates straightforward installation. It has three terminals and a female connector, ensuring compatibility with the original BMW wiring harness. The absence of mounting hardware means that existing hardware should be reused or sourced separately. The part number 245-1142 identifies this specific sensor within the Walker lineup, tailored for BMW models such as the 330Ci, 330i, 330xi, 530i, X5, and Z3.

Common Applications and Issues Addressed

  • Restores accurate air intake measurement for engine control
  • Helps resolve rough idling or engine hesitation
  • Addresses check engine light codes related to mass air flow sensor faults
  • Improves fuel efficiency by providing correct airflow data
  • Supports emission system compliance in BMW 330Ci, 330i, 330xi, 530i, X5, and Z3 models

Installation Notes and Tips

When installing the Walker Mass Air Flow Assembly 245-1142, ensure the housing is properly seated to avoid air leaks. Since mounting hardware is not included, retain the original fasteners or acquire compatible hardware. Verify the female connector aligns correctly with the vehicle’s wiring harness terminals. Handle the sensor carefully to prevent damage to the sensing element.

Quality Assurance and Warranty

Walker mass air flow sensors are manufactured to meet industry standards for durability and performance. The 245-1142 part undergoes quality checks to ensure reliable operation in BMW vehicles. Please refer to Walker’s warranty policy for specific coverage details related to this sensor.

BrandWalker
Part Number245-1142
PositionWalker Mass Air Flow Assembly
Connector GenderFemale
Housing IncludedYes
Mounting Hardware IncludedNo
Terminal Quantity3

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006BMWX53.0LL6N/AEngine Management Mass Air Flow Sensor - Fits various makes and models; Walker Mass Air Flow Assembly
2005BMW330xi3.0LL6N/AWalker Mass Air Flow Assembly
2005BMWX53.0LL6N/AEngine Management Mass Air Flow Sensor - Fits various makes and models; Walker Mass Air Flow Assembly
2004BMW330xi3.0LL6N/AWalker Mass Air Flow Assembly
2004BMWX53.0LL6N/AEngine Management Mass Air Flow Sensor - Fits various makes and models; Walker Mass Air Flow Assembly
2003BMW330Ci3.0LL6N/AFits vehicles up to March 2003.; Walker Mass Air Flow Assembly
2003BMW330i3.0LL6N/AFits vehicles up to September 2002.; Walker Mass Air Flow Assembly
2003BMW330xi3.0LL6N/AWalker Mass Air Flow Assembly
2003BMW530i3.0LL6N/AWalker Mass Air Flow Assembly
2003BMWX53.0LL6N/AWalker Mass Air Flow Assembly
2002BMW330Ci3.0LL6N/AWalker Mass Air Flow Assembly
2002BMW330i3.0LL6N/AWalker Mass Air Flow Assembly
2002BMW330xi3.0LL6N/AWalker Mass Air Flow Assembly
2002BMW530i3.0LL6N/AWalker Mass Air Flow Assembly
2002BMWX53.0LL6N/AWalker Mass Air Flow Assembly
2002BMWZ33.0LL6N/AWalker Mass Air Flow Assembly
2001BMW330Ci3.0LL6N/AWalker Mass Air Flow Assembly
2001BMW330i3.0LL6N/AWalker Mass Air Flow Assembly
2001BMW330xi3.0LL6N/AWalker Mass Air Flow Assembly
2001BMW530i3.0LL6N/AWalker Mass Air Flow Assembly
2001BMWX53.0LL6N/AWalker Mass Air Flow Assembly
2001BMWZ33.0LL6N/AWalker 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:

136214388711362756745115703114M10735S260864175274100558159128610055917981AF10222MA242MAS0236MF21094MF21094N

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