The Bosch 0280218071 Mass Air Flow (MAF) Sensor delivers OE-quality performance for accurate engine management and emission compliance. Utilizing hot film technology, this sensor precisely measures the mass of air entering the engine, providing critical data to the engine control unit for optimal fuel mixture and performance. Key Features: OE technology provides correct function and calibration for trouble-free operation Hot film MAF sensor design for accurate air mass measurement Pre-calibrated with housing for proper fitment and performance Ensures emission compliance and optimal fuel economy Direct replacement for original equipment sensor Complete assembly—sensor and housing calibrated together as a unit Important Installation Note: Bosch hot film MAF sensors are factory-calibrated with the housing as a matched assembly. Always replace the complete unit unless the vehicle manufacturer specifically recommends sensor-only replacement. Bosch is a trusted OE supplier to major automotive manufacturers worldwide, bringing the same quality and precision to the aftermarket that automotive engineers specify from the factory.