Original LB7 Injection lines will corrode and break and are a leading cause of contamination when changing the injectors. If you are changing your injectors, have a line failure, or are looking to upgrade your stock lines, we’ve got you covered with our all new Fleece Performance LB7 Injection Lines!
This set is a direct upgrade to the factory lines on your 2001-2004 Duramax LB7 and features machined 4140 injector swivel nuts, corrosion resistant lines and includes all 8 lines in one complete set.
- Complete set of 8 new lines
- Machined 4140 injector swivel nuts
- Corrosion resistant lines
(Qty 2) Line for Cylinders 1 and 8 - Replaces GM Part 97188720
(Qty 2) Line for Cylinders 2 and 7 - Replaces GM Part 97188723
(Qty 2) Line for Cylinders 3 and 6 - Replaces GM Part 97188721
(Qty 2) Line for Cylinders 4 and 5 - Replaces GM Part 97188722