Delphi AF10551 Mass Air Flow Sensor

OE-Style Mass Air Flow Sensor for Porsche 911

The Delphi AF10551 is a standard replacement mass air flow sensor probe for select 2001-2005 Porsche 911 applications. Built from Delphi’s OE heritage and supplier experience, it is made for vehicles that use a probe-only MAF sensor design.

Key Features

• Mass air flow sensor, probe only
• Standard replacement for emission control sensor service
• Black housing color
• 5-terminal blade connection with 1 female rectangle connector
• Bolt-on mounting type
• No housing included and no wiring harness included
• Package contents: mass air flow sensor probe and instruction sheet

Detailed Description

Delphi AF10551 is a direct-fit style mass air flow sensor for select Porsche 911 models that use a probe-only sensor configuration. It measures incoming air so the engine control system can calculate fuel delivery more accurately, helping maintain proper drivability and emissions performance. This Delphi AF10551 replacement follows standard replacement specifications and reflects Delphi’s OE-focused engineering background. This part cross-references Bosch 0280218009 for the same application.

Common Issues This Part May Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or stumble during acceleration
• Check engine light related to air metering faults
• Poor fuel trim behavior from a failing MAF sensor
• Driveability problems on Porsche 911 models with probe-only MAF sensors

Installation Notes and Tips

Fits 2001-2005 Porsche 911, N/A. Confirm the vehicle uses a probe-only mass air flow sensor before ordering. The connector is female with a rectangular shape and 5 blade terminals, so match the original connector style and terminal count before installation. Use the included instruction sheet and inspect the intake tract for contamination or leaks that can affect sensor readings. The Delphi AF10551 is also referenced by Porsche 996 606 124 00, SU6023, XTP410257, Spectra Premium MA249, and Standard Ignition MAS0454.

Quality Assurance

Delphi builds aftermarket parts using knowledge developed through long OE supply experience, with engineering informed by original equipment applications. The AF10551 is a standard replacement sensor intended to meet the needs of the listed Porsche 911 fitment.