Collection: 2011-2016 6.6L LML Duramax Fuel System Upgrades
2011-2016 6.6L LML Duramax Fuel System Upgrades
Upgrade your 2011-2016 6.6L LML Duramax with our high-performance fuel system components designed to improve fuel efficiency, increase power output, and ensure your engine runs at its optimal performance. Whether you're looking to enhance your truck’s towing capacity, improve throttle response, or gain...
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FASS Fuel Systems Drop-In Series Heater Probe Adapter Bushing (HB-2001)
Regular price $12.00 USDSale price $12.00 USD Regular priceUnit price / per -
FASS Fuel Systems Drop-In Series, Electric Heater Element (DIFS32283R)
Regular price $118.75 USDSale price $118.75 USD Regular priceUnit price / per -
FASS Fuel Systems Drop-In Series Electric Heater Probe Kit (DIFSHK1001)
Regular price $160.55 USDSale price $160.55 USD Regular priceUnit price / per -
FASS Fuel Systems FPR2001 High Flow Adjustable Fuel Pressure Regulator
Regular price $299.00 USDSale price $299.00 USD Regular priceUnit price / per -
FASS FASC09165G Adjustable Diesel Fuel Lift Pump 165GPH GM Duramax 6.6L 2001-2016
Regular price $599.00 USDSale price $599.00 USD Regular priceUnit price / per -
FASS FASC09250G Adjustable Diesel Fuel Lift Pump 250GPH GM Duramax 6.6L 2001-2016
Regular price $699.00 USDSale price $699.00 USD Regular priceUnit price / per -
FASS FASC09290G Adjustable Diesel Fuel Lift Pump 290GPH GM Duramax 6.6L 2001-2016
Regular price $749.00 USDSale price $749.00 USD Regular priceUnit price / per -
FASS FASC09100G Adjustable Diesel Fuel Lift Pump 100GPH GM Duramax 6.6L 2001-2016
Regular price $549.00 USDSale price $549.00 USD Regular priceUnit price / per -
Fleece Performance 3/8 Inch Billet Aluminum Universal Block Off Plug FPE-34070
Regular price $6.47 USDSale price $6.47 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch Billet Aluminum Universal Block Off Plug FPE-34071
Regular price $7.42 USDSale price $7.42 USD Regular priceUnit price / per -
Fleece Performance 7/8 Inch Billet Aluminum Universal Block Off Plug FPE-34113
Regular price $9.32 USDSale price $9.32 USD Regular priceUnit price / per -
Fleece Performance 5/8 Inch Billet Aluminum Universal Block Off Plug FPE-34139
Regular price $8.37 USDSale price $8.37 USD Regular priceUnit price / per -
Fleece Performance 10 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-10
Regular price $48.00 USDSale price $48.00 USD Regular priceUnit price / per -
Fleece Performance 11 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-11
Regular price $50.00 USDSale price $50.00 USD Regular priceUnit price / per -
H&S Motorsports 2011-2016 GM 6.6L Dual High-Pressure Fuel Line (Short)
Regular price $219.00 USDSale price $219.00 USD Regular priceUnit price / per -
Fleece Performance 12 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-12
Regular price $52.00 USDSale price $52.00 USD Regular priceUnit price / per -
Fleece Performance 13 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-13
Regular price $54.00 USDSale price $54.00 USD Regular priceUnit price / per -
Fleece Performance 14 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-14
Regular price $56.00 USDSale price $56.00 USD Regular priceUnit price / per -
Fleece Performance 21 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-21
Regular price $70.00 USDSale price $70.00 USD Regular priceUnit price / per -
Fleece Performance 22 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-22
Regular price $72.00 USDSale price $72.00 USD Regular priceUnit price / per -
Fleece Performance 24 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-24
Regular price $76.00 USDSale price $76.00 USD Regular priceUnit price / per -
Fleece Performance Fleece Performance Fuel Rail Pressure Harness for LML 6.6L Duramax FPE-HAR-DMAX-LML-RP
Regular price $69.99 USDSale price $69.99 USD Regular priceUnit price / per -
H&S Motorsports 2011-2016 GM 6.6L Dual High-Pressure Fuel Line (Long)
Regular price $219.00 USDSale price $219.00 USD Regular priceUnit price / per -
Fleece Performance 23 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-23
Regular price $74.00 USDSale price $74.00 USD Regular priceUnit price / per -
Fleece Performance 7 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-7
Regular price $44.10 USDSale price $44.10 USD Regular priceUnit price / per -
Fleece Performance 8 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-8
Regular price $46.20 USDSale price $46.20 USD Regular priceUnit price / per -
Fleece Performance 9 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-9
Regular price $48.30 USDSale price $48.30 USD Regular priceUnit price / per -
Fleece Performance 15 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-15
Regular price $58.00 USDSale price $58.00 USD Regular priceUnit price / per
2011-2016 6.6L LML Duramax Fuel System Upgrades
Upgrade your 2011-2016 6.6L LML Duramax with our high-performance fuel system components designed to improve fuel efficiency, increase power output, and ensure your engine runs at its optimal performance. Whether you're looking to enhance your truck’s towing capacity, improve throttle response, or gain better fuel economy, our fuel system upgrades are the perfect solution for ensuring your Duramax performs at its best.
Premium Fuel System Components for 6.6L LML Duramax
Our fuel system components for the 2011-2016 6.6L LML Duramax include upgraded fuel injectors, lift pumps, fuel filters, and more. These high-quality parts are designed to ensure that your engine receives the correct fuel flow for maximum efficiency and power. From improving fuel delivery for better performance to optimizing the system for better longevity, our fuel system upgrades are essential for both everyday driving and heavy-duty applications.
Why Choose Our Fuel System Upgrades?
Upgrading your fuel system is crucial for maintaining optimal engine performance, especially when increasing horsepower or towing heavy loads. Our fuel system components are designed to handle higher fuel flow, improve fuel atomization, and ensure consistent performance under heavy loads. Whether you’re modifying your Duramax for performance or simply looking to enhance reliability and efficiency, these fuel system upgrades will help keep your engine running smoothly and efficiently.
Key Features:
- Increased Power and Efficiency: Optimized fuel delivery for better combustion and higher horsepower.
- Enhanced Fuel Flow: Components designed for consistent and reliable fuel flow under demanding conditions.
- Improved Durability: Built to withstand high-performance applications and heavy-duty use..



















