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    LB7 Duramax 2001-2004


    LB7 Duramax Air Intakes
    LB7 Duramax Air Intakes
    LB7 Duramax Tuners & Programmers
    LB7 Duramax Tuners & Programmers
    LB7 Duramax Fuel System
    LB7 Duramax Fuel System
    LB7 Duramax Turbo
    LB7 Duramax Turbo
    LB7 Duramax Intercoolers & Piping
    LB7 Duramax Intercoolers & Piping
    LB7 Duramax Engine Parts
    LB7 Duramax Engine Parts
    LB7 Duramax Exhaust Systems
    LB7 Duramax Exhaust Systems
    LB7 Duramax Fuel Tanks
    LB7 Duramax Fuel Tanks
    LB7 Duramax Transmission
    LB7 Duramax Transmission
    LB7 Duramax Maintenance
    LB7 Duramax Maintenance
    LB7 Duramax Axle and Differential
    LB7 Duramax Axle and Differential
    LB7 Duramax Steering & Suspension
    LB7 Duramax Steering & Suspension
    LB7 Duramax Exterior Accessories
    LB7 Duramax Exterior Accessories
    Explore premium parts and upgrades for the 2001–2004 LB7 Duramax 6.6L diesel engine. From injectors and fuel pumps to tuners and air intakes, find everything you need to enhance performance, improve reliability, and maintain your GM Duramax truck. Shop trusted brands designed specifically for the LB7 Duramax platform
    The LB7 Duramax diesel is a direct-injected, turbocharged, intercooled, four-valve-per-cylinder V-8 that produces 300 hp and 560 lb-ft of torque. Starting from a blank sheet of paper, the 6.6L Duramax is recognized to date as the fastest diesel development program in the world. 

    It went from concept to initial production in only 37 months. This included the construction of a brand-new "green field" manufacturing plant in Moraine, Ohio. The 600,000 square-foot facility resides on 40 acres and includes four machining lines, a heat-treat facility, and engine assembly. In addition, machining of the cylinder blocks, cylinder heads, crankshafts, and connecting rods are accomplished in Moraine. The factory currently has capacity to produce 105,000 engines per year. 

    Duramax production of the LB7 engine began in the summer of 2000, and the project was a collaboration of engineering talent from GM and Isuzu-each taking the lead in their respective area of expertise.