LB7 Duramax Engine Parts

Ensure long-term reliability or build high-horsepower capability on your 2001–2004 Chevy Silverado or GMC Sierra 2500HD/3500HD with our selection of LB7 Duramax engine parts and components. Whether you are performing routine maintenance, repairing blown head gaskets, or completing a full short-block overhaul, utilizing high-quality engine components is critical for the 6.6L common-rail platform. We carry industry-leading ARP head studs and main studs, multi-layer steel (MLS) head gaskets, forged connecting rods, high-strength pistons, camshafts, pushrods, and complete engine rebuild gasket kits. Browse our full inventory of LB7 Duramax engine hardware below to keep your truck running strong on the street, job site, or track.