Bosch Mass Air Flow (MAF) Sensor 0280218419 — OE Replacement, Precise Airflow

The BOSCH 0280218419 Mass Air Flow (MAF) Sensor is an original-equipment grade airflow sensor that delivers precise air-mass measurement for reliable engine control and efficient combustion.

Designed and manufactured by Bosch, a global leader in vehicle engine management, this MAF sensor is a 100% new original equipment component engineered to match factory specifications. It accurately measures the air entering the intake, relays that data to the vehicle’s ECU, and helps maintain optimal air-fuel balance — supporting smoother throttle response, cleaner emissions, and better fuel economy compared with worn or mismatched units.

How does this MAF sensor improve engine performance?

By providing the ECU with an accurate, real-time measure of incoming air mass, the BOSCH 0280218419 allows the engine management system to set the proper fuel injection and ignition timing. That results in steadier idling, improved acceleration consistency, and reduced risk of running lean or rich due to incorrect airflow readings.

• Precise micromechanical sensor element for accurate airflow data.
• Calibrated sensor and housing ensure correct factory-level readings.
• Lower pressure drop design to avoid restricting intake flow.
• Helps maintain smooth idle and consistent throttle response.

Is the BOSCH 0280218419 durable and resistant to contaminants?

Bosch designs its MAF sensors with protection against water and particulate exposure to reduce sensor drift and extend service life. The robust construction and patented internal design enhance reliability in everyday driving conditions, which helps keep readings stable over time.

• Patented design increases resistance to water and debris.
• Reduced sensor drift for longer-term accuracy.
• New, not remanufactured, for maximum longevity.
• Manufactured to meet strict OE fit, form, and function standards.

Will installation require complex adjustments or tuning?

Most replacements are straightforward because Bosch supplies sensors calibrated to match the vehicle’s specifications, and the sensor and housing are sold together for selected part numbers. Installations generally take only minutes and rarely need additional programming when the correct OEM part is used.

• Calibrated unit reduces need for post-install tuning.
• Direct-fit design for bolt-on replacement in compatible vehicles.
• Sensor and housing included for certain part numbers for easier swap.
• Straightforward connector and mounting points align with factory locations.

How does this sensor affect emissions and fuel economy?

Accurate air-mass readings help the engine control unit maintain an efficient combustion process, which can lower harmful emissions and improve fuel usage compared with faulty or degraded sensors. While results vary by vehicle and driving habits, replacing a failing MAF sensor often restores expected efficiency and emissions performance.

• Improves air-fuel ratio accuracy for cleaner combustion.
• Can help restore factory-level fuel economy after replacement.
• Designed to meet emissions-oriented calibration needs.
• Supports engine management systems that rely on precise airflow data.

Who is this for: The BOSCH 0280218419 MAF sensor is ideal for vehicle owners and technicians seeking an OEM-grade replacement to restore factory performance, drivers noticing rough idle, poor fuel economy, or check-engine airflow codes, and anyone who prefers new Bosch-manufactured parts over remanufactured alternatives. It suits models specified for this part number where direct-fit Bosch calibration and long-term reliability are priorities.