2008 Freightliner Cascadia Engine: 12.8L L6 DIESEL; Position: Air Conditioning;. 2009 Freightliner Cascadia Engine: 12.8L L6 DIESEL; Position: Air Conditioning;. 2010 Freightliner Cascadia Engine: 12.8L L6 DIESEL; Position: Water Pump, Alternator and Air Conditioning;.