HomeEmission Control > SensorsDelphi AF10538 Mass Air Flow Sensor
Part #: AF10538

Delphi AF10538 Mass Air Flow Sensor

12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Subaru, Forester and WRX
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Delphi Mass Air Flow Sensor for Subaru Forester and WRX

The Delphi AF10538 Mass Air Flow Sensor is designed to provide accurate airflow measurement for Subaru Forester and WRX models. This sensor ensures proper engine performance by delivering precise data to the vehicle's engine control unit.

  • Color: Black and silver finish for durability
  • Mounting Type: Bolt-on installation for secure fit
  • Connector Quantity: Single rectangular female connector
  • Terminal Quantity: 5 male pin terminals for reliable electrical connection
  • Housing Included: No, probe only design
  • Wiring Harness Included: No
  • Item Grade: Standard replacement part

Product Details and Specifications

The Delphi AF10538 mass air flow sensor features a bolt-on mounting type, allowing for straightforward installation on compatible Subaru vehicles. Its single rectangular female connector with five male pin terminals ensures a stable and secure electrical connection. The sensor comes in a black and silver color scheme and is supplied as a probe only, without housing or wiring harness. This standard replacement part is engineered to meet OEM specifications, providing reliable airflow measurement critical for engine management systems.

Compatible Vehicles and Applications

This mass air flow sensor is compatible with select Subaru models, specifically the Forester and WRX. It is designed to replace the original sensor and restore accurate airflow readings, which are essential for optimal fuel injection and emission control.

  • Improves engine air-fuel mixture accuracy
  • Helps resolve rough idling or stalling issues
  • Addresses poor acceleration or hesitation
  • Reduces potential emission control faults
  • Prevents check engine light triggers related to airflow sensor faults

Installation Notes and Tips

Installation of the Delphi AF10538 mass air flow sensor requires removal of the old sensor and bolt-on mounting of the new unit. Ensure the connector is properly aligned with the rectangular female connector and that all five male terminals are securely engaged. Since the sensor is supplied without a housing or wiring harness, reuse the existing components from the original sensor. Follow the included instruction sheet carefully to avoid damage during installation.

Quality Assurance and Warranty

Delphi manufactures the AF10538 mass air flow sensor to meet industry standards for emission control sensors. This standard replacement part undergoes quality checks to ensure reliable performance. While specific warranty details are not provided, Delphi parts typically come with a limited warranty covering defects in materials and workmanship.

BrandDelphi
Part NumberAF10538
ColorBlack and Silver
Connector GenderFemale
Connector Quantity1
Connector ShapeRectangle
Housing IncludedNo
Item GradeStandard Replacement
Mounting TypeBolt-On
Package ContentsMass Air Flow Sensor - Probe Only, Instruction Sheet
Terminal GenderMale
Terminal Quantity5
Terminal TypePin
Wiring Harness IncludedNo

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2021SubaruWRX2.0LH4N/A
2020SubaruWRX2.0LH4N/A
2019SubaruWRX2.0LH4N/A
2018SubaruForester2.0LH4N/A
2018SubaruWRX2.0LH4N/A
2017SubaruForester2.0LH4N/A
2017SubaruWRX2.0LH4N/A
2016SubaruForester2.0LH4N/A
2016SubaruWRX2.0LH4N/A
2015SubaruForesterN/ACompatible with vehicles with probe-only Mass Air Flow Sensors.
2015SubaruWRXN/ACompatible with vehicles with probe-only Mass Air Flow Sensors.
2014SubaruForesterN/ACompatible with vehicles with probe-only Mass Air Flow Sensors.

* 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:

22680 AA410MAF0124MAS0518

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