Fuel System
FASS Fuel Systems Fuel Sump Kit (SK5501) for Most Diesel Applications (cutting required)
The FASS Fuel Sump Kit SK5501 improves fuel delivery for most diesel trucks. It installs with a single hole, eliminates quarter tank issues, and includes suction and return ports for consistent fuel flow.
FASS No-Drop Series 100GPH Fuel System Stock-600HP (NDTSC10100G) For 2001–2010 Duramax 6.6L
Fleece 18″ Rail Pressure Sensor Extension Harness (FPE-HAR-RP-EXT) for 2001-2016 Duramax LB7 / LLY / LBZ / LMM / LML& 2003-2012 Cummins 5.9L / 6.7L
The Fleece 18″ Rail Pressure Sensor Extension Harness (FPE-HAR-RP-EXT) is a plug-and-play aftermarket solution for 2001–2016 Duramax and 2003–2012 Cummins engines. It provides an 18-inch extension for easier relocation of the rail pressure sensor during custom builds or fuel system upgrades. Built to OEM specs, it ensures a secure, reliable connection without the need for wire cutting or splicing.
Fleece #4 and #5 High Pressure Injection Line (FPE-FL-LBZLMM-45) for 2006-2010 Duramax LBZ / LMM
The Fleece #4 and #5 High Pressure Injection Line (FPE-FL-LBZLMM-45) is a high-performance aftermarket replacement for the factory fuel lines on 2006–2010 GM Duramax LBZ and LMM diesel engines. Designed for durability and precision, it ensures reliable fuel delivery under high pressure and is suitable for both stock and modified engines. With OEM-style fit and finish, it offers a dependable upgrade for maintaining engine performance and efficiency.
Replaces GM Part # 98006526
Fleece #3 and #6 High Pressure Injection Line (FPE-FL-LBZLMM-36) for 2006-2010 Duramax LBZ / LMM
The Fleece #3 and #6 High Pressure Injection Line (FPE-FL-LBZLMM-36) is a durable, direct-fit replacement for 2006–2010 GM Duramax LBZ and LMM diesel engines. Designed to meet or exceed OEM standards, it ensures reliable fuel delivery, resists extreme pressures and temperatures, and helps restore factory performance by eliminating leaks. Suitable for both professionals and enthusiasts, it supports optimal engine performance and longevity.
Replaces GM Part # 98006524
Fleece #2 and #7 High Pressure Injection Line (FPE-FL-LBZLMM-27) for 2006-2010 Duramax LBZ / LMM
The Fleece #2 and #7 High Pressure Injection Line (FPE-FL-LBZLMM-27) is a premium replacement part for 2006–2010 Duramax LBZ and LMM diesel engines. Made by Fleece Performance Engineering, it ensures reliable fuel delivery from the high-pressure pump to the injectors, enhancing engine efficiency and performance. Designed for a direct OEM fit, it offers durability and prevents issues caused by worn or corroded factory lines, making it an ideal upgrade or maintenance solution for maintaining peak engine performance.
Replaces GM Part # 98006523
Fleece #1 and #8 High Pressure Injection Line (FPE-FL-LBZLMM-18) for 2006-2010 Duramax LBZ / LMM
The Fleece #1 and #8 High Pressure Injection Line (FPE-FL-LBZLMM-18) is a durable, precision-engineered replacement part for 2006–2010 GM Duramax LBZ and LMM diesel engines. It replaces factory fuel lines prone to wear and damage, ensuring reliable fuel delivery and consistent engine performance. Designed for easy installation, it suits both stock and modified trucks, making it ideal for professionals and experienced DIYers alike.
Replaces GM Part # 98006527
Fleece CP3 Adapter (FPE-DMAX-CP3-ADPT) for 2001-2016 Duramax 6.6L LB7/ LLY / LBZ / LMM / LML
The Fleece CP3 Adapter (FPE-DMAX-CP3-ADPT) is a precision-engineered component for 2001–2016 GM Duramax 6.6L diesel engines. It enables the replacement of the less reliable factory CP4 fuel pump with a more dependable CP3 pump, particularly beneficial for LML models. Designed for durability and proper fitment, the adapter enhances fuel system reliability and performance, making it ideal for high-horsepower or heavy-duty use.
