3 0 GM/Chev (HD) 6.6L DURAMAX Engine for a 2003 Chevrolet 3500/3500HD Contact for price CORE LB7 DURAMAX OUT OF A 2500/3500 GM PICKUP. PARTING OUT. CALL FOR PARTS. NO INJECTION PUMP. CRANK GONE, Serial#: NA, Core Charge: CALL, Horse Power: 3, Casting#: NA ConditionUsedCPL/ARRLB7Horse Power3 HPFits To Make(s)ChevroletFits To Model(s)3500/3500HDWill Fit Year(s)2003Part NumberLB7Stock Number771139 MLS Number13541578CategoryEngines Last Updated10/28/2025 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info