2019 Ford Explorer Engine: 3.5L V6; Probe Only;. Part Type: Mass Air Flow Sensor. Mass Air Flow Sensor. MAF Sensor. Sensor Casing Length: 46 MM / 1.8 IN. Sensor Casing Width: 40 MM / 1.5 IN. 2013 Ford Explorer Engine: 3.5L V6 Naturally Aspirated; Probe Only;.