2004 GMC Sierra 3500 6.6L V8 VIN: 2. 2005 GMC Sierra 3500 6.6L V8. Notes: Small I.D. Heater Hose. 2006 GMC Sierra 3500 6.6L V8. Position:Heater To Exhaust Gas Recirculation. Position:Heater Inlet. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
