Exergy E05-10115 Injector Line Set (Per Side) | 2001-2004 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LB7

Features: - Includes 4 injector lines per bank - Replaces corroded or damaged fuel lines - Protects new injectors from contamination - Prevents hidden rust from entering injectors - Helps avoid high-pressure fuel leaks - Same set fits either driver or passenger side - Essential when replacing LB7 fuel injectors - Restores proper fuel delivery and sealing - Reduces risk of oil contamination from leaks Premium Injector Line Set for GM 6.6L Duramax If you’re replacing injectors on your LB7 Duramax, swapping in a fresh set of injector lines isn’t just a good idea—it’s a must. The Exergy E05-10115 Injector Line Set is built specifically for 2001–2004 GM 2500HD and 3500HD trucks with the 6.6L LB7, and it’s designed to prevent the kinds of issues that can cost you time, money, and engine reliability down the road. Over time, the factory high-pressure fuel lines are prone to rust and corrosion, especially near the sealing surfaces at the injector nuts. That rust can flake off during reassembly, finding its way into your brand-new injectors. Even worse, corrosion hidden between the nut and line can loosen under pressure, leading to sealing failures or a high-pressure fuel leak into your engine oil. That’s the kind of damage that snowballs fast—and often goes unnoticed until it’s too late. Set of 4 Lines This Exergy line set includes four high-pressure injector lines—enough to service one bank of cylinders. If you’re doing all eight injectors, you’ll need two sets. Each line is precision-built to ensure proper sealing and flow, giving you peace of mind that your fuel system is clean, leak-free, and delivering the performance your Duramax was built for. Whether you’re doing a full injector replacement or just trying to head off future problems, upgrading to a new set of injector lines is a smart, preventative move. Fits: 2001, 2002, 2003, 2004 GM 6.6L Duramax Note: The line set is the same for each bank. This set comes with 4 high pressure injector lines to complete 1 bank of injectors. For both banks, please order 2 injector line sets.