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Fleece Performance LB7 Duramax Injector Line Set (FPE-34611)
Complete Set of 8 High-Pressure Fuel Injector Lines for 2001–2004 GM 6.6L Duramax LB7
The factory high-pressure injector lines on the LB7 Duramax are notorious for corroding, cracking, and failing over time. This corrosion is one of the leading causes of fuel contamination when installing new or remanufactured injectors — and many injector manufacturers will not honor a warranty unless the lines are replaced or professionally cleaned.
The Fleece Performance FPE-34611 injector line set solves this problem with a complete, brand-new direct-replacement solution. These lines deliver clean, contamination-free fuel to your injectors while restoring reliable high-pressure fuel delivery.
Key Features & Benefits
- Complete set of 8 lines — replaces every factory injector line in one kit
- Corrosion-resistant construction — built to resist rust and deterioration far better than original lines
- Precision-machined 4140 injector swivel nuts — superior strength, durability, and sealing surface
- Direct bolt-on replacement — exact OEM-style bends and lengths for perfect fitment with no modifications required
- Protects your investment in new injectors and helps maintain peak engine performance on stock or modified LB7s
- Ideal when replacing injectors, fixing a failed line, or performing preventive maintenance
Vehicle Fitment
2001–2004 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with the 6.6L LB7 Duramax diesel engine.
What’s Included
- (2) Lines for Cylinders 1 & 8 — Replaces GM #97188720
- (2) Lines for Cylinders 2 & 7 — Replaces GM #97188723
- (2) Lines for Cylinders 3 & 6 — Replaces GM #97188721
- (2) Lines for Cylinders 4 & 5 — Replaces GM #97188722
Why Fleece Lines Are the Smart Choice
Reusing old, corroded LB7 lines is one of the fastest ways to ruin a fresh set of injectors. The Fleece set gives you peace of mind with new, high-quality lines that are engineered to last and perform under real-world conditions.
Part Number: FPE-34611 Warranty: 1-year limited parts warranty
Fleece Performance LB7 Duramax Injector Line Set (FPE-34611)
Complete Set of 8 High-Pressure Fuel Injector Lines for 2001–2004 GM 6.6L Duramax LB7
The factory high-pressure injector lines on the LB7 Duramax are notorious for corroding, cracking, and failing over time. This corrosion is one of the leading causes of fuel contamination when installing new or remanufactured injectors — and many injector manufacturers will not honor a warranty unless the lines are replaced or professionally cleaned.
The Fleece Performance FPE-34611 injector line set solves this problem with a complete, brand-new direct-replacement solution. These lines deliver clean, contamination-free fuel to your injectors while restoring reliable high-pressure fuel delivery.
Key Features & Benefits
Complete set of 8 lines — replaces every factory injector line in one kit
Corrosion-resistant construction — built to resist rust and deterioration far better than original lines
Precision-machined 4140 injector swivel nuts — superior strength, durability, and sealing surface
Direct bolt-on replacement — exact OEM-style bends and lengths for perfect fitment with n[...]
Fleece Performance LB7 Duramax Injector Line Set (FPE-34611)
Complete Set of 8 High-Pressure Fuel Injector Lines for 2001–2004 GM 6.6L Duramax LB7
The factory high-pressure injector lines on the LB7 Duramax are notorious for corroding, cracking, and failing over time. This corrosion is one of the leading causes of fuel contamination when installing new or remanufactured injectors — and many injector manufacturers will not honor a warranty unless the lines are replaced or professionally cleaned.
The Fleece Performance FPE-34611 injector line set solves this problem with a complete, brand-new direct-replacement solution. These lines deliver clean, contamination-free fuel to your injectors while restoring reliable high-pressure fuel delivery.
Key Features & Benefits
- Complete set of 8 lines — replaces every factory injector line in one kit
- Corrosion-resistant construction — built to resist rust and deterioration far better than original lines
- Precision-machined 4140 injector swivel nuts — superior strength, durability, and sealing surface
- Direct bolt-on replacement — exact OEM-style bends and lengths for perfect fitment with no modifications required
- Protects your investment in new injectors and helps maintain peak engine performance on stock or modified LB7s
- Ideal when replacing injectors, fixing a failed line, or performing preventive maintenance
Vehicle Fitment
2001–2004 Chevrolet Silverado 2500HD / 3500HD and GMC Sierra 2500HD / 3500HD with the 6.6L LB7 Duramax diesel engine.
What’s Included
- (2) Lines for Cylinders 1 & 8 — Replaces GM #97188720
- (2) Lines for Cylinders 2 & 7 — Replaces GM #97188723
- (2) Lines for Cylinders 3 & 6 — Replaces GM #97188721
- (2) Lines for Cylinders 4 & 5 — Replaces GM #97188722
Why Fleece Lines Are the Smart Choice
Reusing old, corroded LB7 lines is one of the fastest ways to ruin a fresh set of injectors. The Fleece set gives you peace of mind with new, high-quality lines that are engineered to last and perform under real-world conditions.
Part Number: FPE-34611 Warranty: 1-year limited parts warranty
Fits: Duramax 2001-2010
Fits: LB7 Duramax 2001-2004
Fits: LB7 Duramax 2001-2004
Fits: LB7 Duramax 2001-2004