Standard Motor Products 221029M BWD Mass Air Flow Sensor

The Standard Motor Products BWD 221029M is a direct-replacement Mass Air Flow (MAF) sensor engineered to restore accurate airflow measurement and proper engine management. As a 100% new unit — never remanufactured — this sensor eliminates the risk of debris contamination that commonly causes premature failure in rebuilt sensors.

Key Features:

• 100% new construction — never remanufactured, with no leftover debris to cause sensor failure
• Calibrated to OE specifications — ensures accurate airflow output to the ECU across a wide range of ambient temperatures
• Proprietary sensing elements — designed to deliver a clean, stable signal for precise air/fuel ratio control
• Hybrid electronic circuitry — ensures reliable, wear-free sensor life with no moving parts
• 100% computer-tested — every unit is verified before leaving the factory to guarantee performance under demanding engine conditions
• Direct bolt-in replacement — designed to match original equipment form, fit, and function

The MAF sensor monitors the volume and density of air entering the engine and communicates that data to the Engine Control Module (ECM). The ECM uses this information to meter the correct fuel delivery, manage spark timing, control EGR scheduling, and optimize automatic transmission shift points. A failed or degraded MAF sensor can trigger a check engine light, cause rough idling, stalling, hesitation, and reduced fuel economy.

BWD is a trusted brand within the Standard Motor Products family, backed by over 100 years of automotive parts engineering and manufacturing expertise.

Cross-Reference Part Numbers: MF21029, MA236, AFH55M10, MAF1115, 7450052