6.6 Liter OHV 32-Valve Turbo-Diesel V8 Engine on the 2006 GMC Sierra 2500HD SLE Crew Cab 4x4
6.6 Liter OHV 32-Valve Turbo-Diesel V8 Engine on the 2006 GMC Sierra 2500HD SLE Extended Cab 4x4
6.6 Liter OHV 32-Valve Turbo-Diesel V8 Engine on the 2006 GMC Sierra 2500HD SLT Crew Cab
6.6 Liter OHV 32-Valve Turbo-Diesel V8 Engine on the 2006 GMC Sierra 2500HD SLT Crew Cab 4x4