Replacement MAF sensor Air Flow Sensors MAFs measure the amount and characteristics of air entering the engine, providing highly accurate airflow readings to the ECU over a wide range of ambient temperatures, thereby ensuring efficient engine operation. Trustworthy Quality Uses precision elements and highquality components for enhanced durability and accurate air flow measurements. The MAFs must go through multiple inspections and air flow tests for ensuring precise sensor reading and data transmission. Ensure Fit Compatible with 20092015 Cadillac CTS, 20092014 Cadillac Escalade, 20092013 Chevy Avalanche, 20092013 Chevy Silverado 1500, 20092015 Silverado 2500 HD 3500HD, 20092014 Chevy Suburban 1500, 20092013 Suburban 2500, 20092014 Tahoe, 20092013 GMC Sierra 1500, 20092015 GMC Sierra 2500HD 3500HD, 20092014 GMC Yukon XL1500 XL2500, Please input your make, model and trim level into the Amazon Garage to make sure this part fits your exact vehicle. Relaces Part 10393948, 23256991, AF10060, MAF300, 9171067, 5S13836, The MAF Sensor can easily be located beside the air intake box inside the engine bay. 12Month Warranty This MAF Sensor comes with 12 months warranty, if the sensor ever fails on your Escalade, Silverado, Suburban, Sierra, or Yukon, simply contact us for free replacement or refund. Save time and money off of dealer prices by purchasing this part and taking advantage of our product and service.