Applicable models: 11-15 Chevrolet SILVERADO 2500HD 6.6L 6599CC 403CU.IN.V8 OHV Diesel Turbine Engine LML 11-15 Chevrolet SILVERADO 3500HD 6.6L 6599CC 403CU.IN.V8 OHV Diesel Turbine Engine LML 11-15 GMC SIERRA 2500HD 6.6L 6599CC 403CU.IN.V8 OHV Diesel Turbine Engine LML 11-15 GMC SIERRA 3500HD 6.6L 6599CC 403CU.IN.V8 OHV Diesel Turbine Engine LML Products include: 1x air intake closing plate 1x off the exhaust plate 1x three-terminal cooling hose 4x clamp 8x screw Material: aluminum alloy + stainless steel The aluminum alloy has low density, high strength, and excellent electrical conductivity, thermal conductivity and corrosion resistance. High-quality stainless steel material, resistant to strong acid and alkali, high in oxidation resistance, durable and easy to clean. Precision machining with CNC lathe, bright surface, no burr, pressure resistance, high-temperature resistance.