LB7 Duramax | 2001–2004
Shop parts for 2001–2004 GM trucks equipped with the 6.6L LB7 Duramax. Browse fuel system components, injectors, turbo parts, cooling upgrades, engine components, transmission parts, maintenance items, and performance upgrades selected for LB7 applications. Always verify your exact year, model, and product fitment before ordering.
Merchant Automotive Rear Engine Cover - 2001-2010 GM Duramax
Exergy Injector O-Ring & Copper Gasket Seal Kit - 2001-2004 GM Duramax LB7
BD Diesel Premium Performance Injector Set - 2001-2004 GM Duramax LB7
Exergy Injector Line Set Per Side - 2001-2004 GM Duramax LB7
Thoroughbred Fuel Injection Reman LB7 Injector - 2001-2004 GM Duramax
MAHLE Valve Cover Gasket & Injector Seal Kit - 2001-2004 GM Duramax LB7
Bosch Fuel Injector - 2001-2004 GM Duramax LB7
MAHLE Fuel Injector Seal Kit - 2001-2004 GM Duramax LB7
DTech Injector Service Seal Kit - 2001-2004 GM Duramax LB7
S&S Diesel New Stock SAC Injector Set - 2001-2004 GM Duramax LB7
DDP Performance Injector Set - 2001-2004 GM Duramax LB7
Merchant Automotive Cooling System Service Kit - 2001-2004 GM Duramax LB7
Industrial Injection LB7 Injector Line Set - 2001-2004 GM Duramax LB7
S&S Diesel Reman Stock SAC Injector Set - 2001-2004 GM Duramax LB7
Mishimoto Transmission Cooler Line Kit - 2001-2004 GM Duramax LB7
Dorman Fuel Rail Return Line Gaskets - 2001-2004 GM Duramax LB7
Merchant Automotive Master Engine Gasket Kit - 2001-2004 GM Duramax LB7
PPE High-Flow Exhaust Manifold & Up-Pipe Kit - 2001-2004 GM Duramax LB7
S&S 100% Over SAC Injector Set - 2001-2004 GM Duramax LB7
Merchant Automotive Deluxe Injector Install Kit - 2001-2004 GM Duramax LB7
Alliant Head Gasket Installation Kit without Studs - 2001-2004 GM Duramax LB7
RevMax Allison 1000 High-Performance Valve Body - 2001-2004 GM Duramax LB7
Merchant Automotive Lower Valve Cover Gasket - 2001-2004 GM Duramax LB7
Merchant Automotive Fuel Injector Line Kit - 2001-2004 GM Duramax LB7
Shopping LB7 Duramax | 2001–2004
Hilltop Diesel Performance organizes parts around real truck fitment so you can move from platform to the component you need without digging through an unrelated catalog. For Duramax applications, start with your exact year and engine, then verify configuration-specific notes on the product page before ordering.
Common upgrade and service paths include fuel delivery, injectors, turbochargers, intake and charge-air parts, exhaust, cooling, transmission components, filtration, sensors, gaskets, hardware and supporting installation parts.