New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004
New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 is a brand-new replacement kit priced at $72.85. Designed for precise fuel delivery, it ensures reliable performance and leak-free operation during injector service on LB7 diesel engines.
● In stock
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Key features
- Precision fit for 2001–2004 LB7 Duramax
- Complete set of high-pressure fuel lines
- Durable steel construction for long life
- Leak-resistant connections at all ports
- Direct OEM replacement, no modifications
- Includes part numbers 904-126 through 904-128
- Fast free shipping from New Jersey
Pros
- +Exact OEM fit for reliable installation
- +Prevents fuel leaks with new metal lines
- +Cost-effective vs dealer replacement parts
- +Essential for injector replacement jobs
- +Free and fast shipping included
Cons
- −Only fits LB7, not later Duramax models
- −No installation hardware included
About New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004
What is New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004?
This New Fuel Injector Line Set is a direct-fit replacement for the high-pressure fuel lines on 6.6L LB7 Duramax diesel engines from 2001 to 2004. Engineered to restore proper fuel flow between the injection pump and injectors, this kit is essential when performing injector replacements or fuel system repairs. Each line is built to exact OEM specifications, ensuring correct length, threading, and sealing surfaces for a secure, leak-free installation. Compatible with Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 models, it's a critical component for maintaining optimal diesel performance and engine reliability.
Key features
- Precision Fit — Matches OEM dimensions for 2001–2004 LB7 Duramax engines.
- Complete Set — Includes all necessary high-pressure fuel lines for full replacement.
- Durable Steel Construction — Resists cracking and fatigue under high pressure.
- Leak-Resistant Seals — Engineered for secure connections at injector and pump ports.
- Direct Replacement — No modifications needed; installs with standard tools.
- Multiple Part Numbers — Covers 904-126, 904-127, 904-128 configurations.
- Fast Free Shipping — Ships quickly from New Jersey with no delivery fee.
Who is New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 for?
This fuel line set is ideal for diesel truck owners, DIY mechanics, and repair shops servicing 6.6L LB7 Duramax engines. It’s especially valuable during injector replacements, where old lines degrade and must be replaced to prevent fuel leaks and performance issues. Those restoring or maintaining Silverado and Sierra HD trucks from 2001–2004 will find this set essential for safe, efficient fuel system operation.
How does New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 compare?
Compared to reusing worn OEM lines, this new set eliminates the risk of cracks and leaks, offering superior reliability. Unlike generic or off-brand kits, it’s designed specifically for LB7 applications, ensuring correct fit and pressure tolerance. While some aftermarket sets may cut corners on material quality, this version uses durable steel construction to match factory durability. It’s a cost-effective alternative to dealer-priced OEM kits, providing the same performance at a lower price point.
Best use cases
- →Replacing cracked fuel lines on LB7
- →Injector replacement maintenance
- →Diesel engine repair after failure
- →Restoring fuel system integrity
- →Preventative upgrade during service
Is New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 right for you?
This fuel line set is best for DIY mechanics or shops working on 2001–2004 Chevrolet and GMC diesel trucks with the 6.6L LB7 engine. Intermediate skill level is recommended due to high-pressure fuel system handling. Always replace lines when changing injectors. Alternatives include salvaged OEM lines, but these risk cracks and leaks. This new set ensures safety and performance.
How it compares: Compared to reused or refurbished fuel lines, this new set offers superior durability and leak prevention. It matches OEM quality at a lower cost than dealership parts and outperforms generic kits in fit and material strength for LB7 Duramax applications.
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What vehicles does this fuel injector line set fit?
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This set fits 2001–2004 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 with the 6.6L LB7 Duramax diesel engine. It's designed as a direct replacement for original fuel lines.
Does this kit include all necessary fuel lines?
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Yes, it includes the complete set of high-pressure fuel lines needed to connect the injection pump to all injectors on the LB7 engine, covering part numbers 904-126, 904-127, and 904-128.
How difficult is installation of these fuel lines?
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Installation requires intermediate mechanical skill. You must depressurize the fuel system and handle high-pressure components carefully. Proper torque specs are critical to prevent leaks and damage.
Is this a genuine OEM part?
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No, this is a new aftermarket kit designed to meet OEM specifications. It offers the same fit and function as factory lines but at a lower price point.
Can I reuse my old fuel injector lines?
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It's not recommended. Old lines can crack or deform under high pressure. Replacing them with new lines ensures a secure, leak-free fuel system and prevents future engine issues.
How much does New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 cost?
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New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 is $72.85 at Lab Work Auto. Prices may change — click through to Lab Work Auto for the latest.
Is New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 in stock at Lab Work Auto?
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Yes, New Fuel Injector Line Set for Chevrolet GMC 6.6L LB7 Duramax Diesel 2001-2004 is currently in stock at Lab Work Auto.
Specifications
- SKU
- F7-6430