MAF Mass Air Flow Sensor 8V21-12B579-AA Direct Replacement Fits Ford Mustang Explorer Edge Fiesta Fusion Taurus Land Rover LR2 Evoque Discovery Sport

Experiencing P0101, P0171, or P0174 codes? Rough idle, hesitation on acceleration, and unexplained fuel economy loss often trace to a failing mass air flow sensor. This direct-replacement MAF unit matches the signal profile of Ford 8V21-12B579-AA and installs without wiring modifications. COMPATIBLE WITH THESE NORTH AMERICAN VEHICLES — Engine restrictions apply. Verify your engine code before ordering. Ford Mustang (2013–2018) — 2.3L EcoBoost, 3.7L V6, 5.0L V8, 5.2L V8 Ford Explorer (2012–2015) — 2.0L EcoBoost I4 ONLY. Does NOT fit 3.5L V6 or 3.5L EcoBoost models. Ford Edge (2012–2014) — All engine options Ford Fiesta (2014–2017) — 1.0L EcoBoost, 1.6L Ford Fusion (2013–2020) — 1.5L/2.0L EcoBoost ONLY. Not for 2.5L or 2.7L models. Ford Taurus (2013) — 2.0L EcoBoost ONLY. Land Rover LR2 (2013–2015) — 2.0L I4 Land Rover Discovery Sport (2016–2017) — 2.0L I4 Land Rover Range Rover Evoque (2012–2017) — 2.0L I4 TECHNICAL SPECIFICATIONS Sensor Type: Hot-film air mass meter Connector: 4-pin rectangular, keyed to factory harness Housing: Glass-filled nylon with OEM-spec mounting flange Calibration: Pre-mapped to match OEM voltage-to-airflow curve across 0–600 kg/h range IMPORTANT Verify your original part number reads 8V21-12B579-AA, 8V2Z-12B579-A, or Bosch AFH70M-83 before ordering. If your vehicle is not listed above or carries a different engine code, message us your VIN for confirmation.

• PART NUMBER REFERENCE – Directly replaces original equipment part numbers 8V21-12B579-AA, 8V2Z-12B579-A, and AFH70M-83. Match your original part stamp or VIN before ordering to eliminate guesswork
• COMPATIBLE VEHICLES – Engineered for select 2012–2018 Ford and 2012–2017 Land Rover models with 1.0L to 3.2L displacement. Critical engine restrictions apply—see Product Description below for the full year, make, model, and engine code breakdown before purchase
• SENSOR CALIBRATION & BUILD – Features a 4-pin rectangular connector keyed to the factory harness and a mounting flange matching the original airbox footprint. Install with standard hand tools in under 20 minutes on most applications—no cutting, splicing, or additional hardware needed Plug-and-play design
• RESTORE ENGINE PERFORMANCE – Accurately measures incoming air mass to help the Engine Control Unit (ECU) calculate the correct air-fuel ratio. Helps resolve common symptoms of a failing MAF, such as illuminated Check Engine Light (CEL), rough idling, hesitation during acceleration, and decreased fuel economy
• WARRANTY SUPPORT – We stand behind our automotive components. This Mass Air Flow Sensor is backed by an 180-day warranty against manufacturing defects.Contact seller directly through Amazon Messages for exchange or refund