HVAC Binary Switch. System Mounted Binary Pressure Switch. Style: Binary. 2003 Ford Excursion Engine: 6.0L V8;. 2004 Ford Excursion Engine: 6.0L V8;. 2005 Ford Excursion Engine: 6.0L V8;. IMPORTANT: To confirm that this part fits your vehicle, enter your vehicles Year, Make, Model, Trim and Engine in the Compatibility Table.