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New 2001-2004 LB7 Duramax Injector Line Set Fits: 2001-2004 LB7 6.6 Duramax Item Type: LB7 Duramax High Pressure Lines Brand: Industrial Injection Part Number: 412501 This is a complete set of brand new fuel lines for the 2001-2004 LB7 Duramax We recommend ordering a set of these lines when purchasing new injectors. Through years of doing warranty work and working on these model trucks we have found that most contamination of the injectors after install is from the injector lines not being cleaned well enough or at all. These lines take a lot of abuse and doing a new set is a great insurance towards the life of the injectors.
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🇺🇸 Ship from USA · On Agora since 2025
$363.95