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    LB7 Duramax Fuel System & Injectors


    Fuel Injectors
    Fuel Injectors
    LB7 Duramax Lift Pumps
    LB7 Duramax Lift Pumps
    LB7 Duramax CP3 Pumps
    LB7 Duramax CP3 Pumps
    LB7 Duramax Fuel Filters
    LB7 Duramax Fuel Filters
    LB7 Duramax Sumps & Suction Tubes
    LB7 Duramax Sumps & Suction Tubes
    Fuel System Plumbing
    Fuel System Plumbing
    Fuel Pressure Parts
    Fuel Pressure Parts
    Fuel Rail
    Fuel Rail
    Protect your 2001–2004 Chevy Silverado or GMC Sierra 2500HD/3500HD from common injection issues with our full selection of LB7 Duramax fuel system parts and upgrades. Because the factory 6.6L common-rail platform lacks a factory lift pump, the CP3 injection pump must pull fuel under vacuum, accelerating wear on internal injectors. Adding an aftermarket FASS or AirDog lift pump, replacement Bosch injectors, high-flow fuel lines, or upgraded filter heads ensures clean, pressurized fuel delivery and maximum reliability. Browse our LB7 fuel components below to keep your truck running strong.