6.6 Liter OHV 16-Valve Duramax Turbo-Diesel V8 Engine on the 2003 Chevrolet Silverado 2500HD LS Crew Cab 4x4
6.6 Liter OHV 16-Valve Duramax Turbo-Diesel V8 Engine on the 2003 Chevrolet Silverado 2500HD LS Extended Cab 4x4
6.6 Liter OHV 16-Valve Duramax Turbo-Diesel V8 Engine on the 2003 Chevrolet Silverado 2500HD LS Regular Cab 4x4
6.6 Liter OHV 16-Valve Duramax Turbo-Diesel V8 Engine on the 2003 Chevrolet Silverado 2500HD LT Crew Cab 4x4
6.6 Liter OHV 16-Valve Duramax Turbo-Diesel V8 Engine on the 2003 Chevrolet Silverado 2500HD LT Extended Cab 4x4