Standard Motor Products MAS0421 Mass Air Flow Sensor

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Mercedes-Benz 0000943448
• Bosch 0281002978
• Delphi AF10511
• Echlin 2-14759
• VEMO V30-72-0835
• BWD Intermotor MA1253
• BWD MA1253
• Airtex 5S15813
• BSE New 21334
• BSE New MF21334
• VEMO V30720835
• Walker Products 2451394

• 100% computer-tested to ensure the ECU receives accurate airflow readings under hard engine conditions, which are required to balance and deliver the correct air/fuel ratio to the engine in order to achieve clean burns
• 100% new, never remanufactured, so there's no leftover debris that can cause sensor failure
• Manufactured to strict quality standards to ensure each part outperforms other air flow sensors in aftermarket
• Proprietary sensing elements provide accurate airflow output to ECU over wide range of ambient temperatures