2005 Sterling Truck Acterra 5500 Engine: 8.3L L6 DIESEL; Position: Fan, Water Pump and Alternator;. 2006 Sterling Truck Acterra 5500 Engine: 8.3L L6 DIESEL; Position: Fan, Water Pump and Alternator;. 2007 Sterling Truck Acterra 5500 Engine: 8.3L L6 DIESEL; Position: Fan, Water Pump and Alternator;.
