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Merchant Automotive 2001-2004 Chev/GMC LB7 Fuel Injector Line Kit - 10215

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SKU: MAT-20250


The 2001 to early 2004 GM Duramax 6.6L V8 Silverado and Sierra diesel trucks had a bad reputation for fuel injector lines corroding and rusting around the line and nut at the injector inlet connector. This can cause fuel leaks and engine damage if not repaired in a timely manner. When replacing your Duramax fuel injectors, it is always a good idea to go ahead and replace your fuel injector lines. Reusing old fuel injector lines can introduce dirt and debris into your new injectors, causing them to be clogged. We here at Merchant Automotive offer this new LB7 injector line set of 8 to replace all of your fuel injectors on your next fuel system replacement. Purchasing these lines in this comprehensive kit allows you to save money and prevent future potential failure by replacing all 8 at once. Add a set of our replacement LB7 fuel injectors and a basic fuel injector install kit to finish up your Duramax fuel system restoration or replacement.


  • Solves Common Corrosion Problem
  • Aids In Fuel Injector Replacement
  • OEM Like Design


  • High-Quality Construction
  • Kit Includes All 8 Lines

What's In The Box

  • 8 Fuel Injector Lines

Replacing LM7 Duramax Fuel Injectors

The 2001-early 2004 GM Duramax engine is well known for having injector failure due to poor design and lesser quality fuel that deteriorates your injectors. This can be noted by white exhaust smoke that is usually noticed at idle. Due to this common failure, Duramax owners oftentimes have to replace their fuel injectors during extended ownership. When replacing these fuel injectors, this is a perfect time to replace your fuel injector lines to keep your fuel system running top notch.


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