Collection: 2001-2004 6.6L LB7 Duramax Fuel System Upgrades
2001-2004 6.6L LB7 Duramax Fuel System Upgrades
Maximize the power and efficiency of your 2001-2004 6.6L LB7 Duramax with our premium fuel system upgrades. Designed to improve fuel delivery, optimize combustion, and increase horsepower, these components are essential for drivers looking to get the most out of their Duramax. Whether...
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FASS Titanium Signature Series Diesel Fuel System 100GPH GM Duramax 6.6L 2001-2010
Regular price $714.00 USDSale price $714.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 165GPH GM Duramax 6.6L 2001-2010
Regular price $754.00 USDSale price $754.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 250GPH GM Duramax 6.6L 2001-2016
5.0 / 5.0
(1) 1 total reviews
Regular price $824.00 USDSale price $824.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 290GPH GM Duramax 6.6L 2001-2016
Regular price $874.00 USDSale price $874.00 USD Regular priceUnit price / per -
FASS Fuel Systems COMP330G Competition Series 330GPH (30 PSI MAX)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
FASS Fuel Systems COMP360G Competition Series 360GPH (100 PSI MAX)
Regular price $1,279.00 USDSale price $1,279.00 USD Regular priceUnit price / per -
FASS Fuel Systems COMP540G Competition Series 540GPH (70 PSI MAX)
Regular price $1,349.00 USDSale price $1,349.00 USD Regular priceUnit price / per -
FASS XWS3002 Extreme Water Separator
Regular price $31.66 USDSale price $31.66 USD Regular priceUnit price / per -
FASS Fuel Systems Filter Pack FP3000
Regular price $108.26 USDSale price $108.26 USD Regular priceUnit price / per -
FASS STK1005 Diesel Fuel Bulkhead and Viton Suction Tube Kit
Regular price $101.10 USDSale price $101.10 USD Regular priceUnit price / per -
FASS Fuel Systems Diesel Fuel Sump Kit (SK5501)
Regular price $179.00 USDSale price $179.00 USD Regular priceUnit price / per$177.89 USD -
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 $127.66 USDSale price $127.66 USD Regular priceUnit price / per -
FASS Fuel Systems Drop-In Series Electric Heater Probe Kit (DIFSHK1001)
Regular price $172.59 USDSale price $172.59 USD Regular priceUnit price / per -
FASS Fuel Systems FPR2001 High Flow Adjustable Fuel Pressure Regulator
Regular price $299.25 USDSale price $299.25 USD Regular priceUnit price / per -
FASS FASC09165G Adjustable Diesel Fuel Lift Pump 165GPH GM Duramax 6.6L 2001-2016
Regular price $644.00 USDSale price $644.00 USD Regular priceUnit price / per -
FASS FASC09250G Adjustable Diesel Fuel Lift Pump 250GPH GM Duramax 6.6L 2001-2016
Regular price $752.00 USDSale price $752.00 USD Regular priceUnit price / per -
FASS FASC09290G Adjustable Diesel Fuel Lift Pump 290GPH GM Duramax 6.6L 2001-2016
Regular price $806.00 USDSale price $806.00 USD Regular priceUnit price / per -
FASS FASC09100G Adjustable Diesel Fuel Lift Pump 100GPH GM Duramax 6.6L 2001-2016
Regular price $591.00 USDSale price $591.00 USD Regular priceUnit price / per -
FASS Adjustable Fuel Pressure Regulator
Regular price $152.17 USDSale price $152.17 USD Regular priceUnit price / per -
FASS High Output Heater Disk
Regular price $179.00 USDSale price $179.00 USD Regular priceUnit price / per -
FASS Fuel Systems WH-1006-3R Fuel System Wiring Harnesses
Regular price $111.32 USDSale price $111.32 USD Regular priceUnit price / per -
FASS 32283R Replacement Element For FASS Titanium Electric Heater
Regular price $127.66 USDSale price $127.66 USD Regular priceUnit price / per -
FASS CBK1001 Universal Heavy Duty Pickup Frame Clamp Bracket
Regular price $76.59 USDSale price $76.59 USD Regular priceUnit price / per -
FASS DFD4000 Duramax Factory Fuel Filter Delete Kit 2001-2016
Regular price $83.74 USDSale price $83.74 USD Regular priceUnit price / per -
FASS DMAX7001 Duramax Diesel Fuel System Flow Enhancer GM Duramax 6.6L 2001-2010
Regular price $459.00 USDSale price $459.00 USD Regular priceUnit price / per -
FASS Fuel Systems Filter Pack XL
Regular price $60.25 USDSale price $60.25 USD Regular priceUnit price / per -
FASS TITANIUM SERIES OPTIONAL ELECTRIC DIESEL FUEL HEATER KIT
Regular price $179.00 USDSale price $179.00 USD Regular priceUnit price / per
2001-2004 6.6L LB7 Duramax Fuel System Upgrades
Maximize the power and efficiency of your 2001-2004 6.6L LB7 Duramax with our premium fuel system upgrades. Designed to improve fuel delivery, optimize combustion, and increase horsepower, these components are essential for drivers looking to get the most out of their Duramax. Whether you're towing, off-roading, or just looking for improved performance, our fuel system parts provide the enhanced functionality and reliability your truck needs.
High-Performance Fuel System Components for 6.6L LB7 Duramax
Our fuel system upgrades for the 2001-2004 6.6L LB7 Duramax include high-flow fuel injectors, fuel pumps, fuel filters, and more. These components work together to provide optimal fuel delivery, better fuel atomization, and improved engine performance. With enhanced fuel flow, your Duramax will experience improved throttle response, better fuel economy, and increased power, even under heavy load or extreme conditions.
Why Choose Our Fuel System Upgrades?
Upgrading your fuel system is one of the most effective ways to boost your Duramax's overall performance. Our parts are designed to handle increased horsepower, provide cleaner fuel delivery, and optimize combustion efficiency. Whether you’re looking to increase towing power, improve fuel efficiency, or boost overall engine performance, our high-quality fuel system components are built to meet the demands of your 2001-2004 6.6L LB7 Duramax.
Key Features:
- Increased Fuel Flow: High-flow injectors and pumps provide better fuel delivery for more power and performance.
- Enhanced Combustion Efficiency: Improved fuel atomization for better engine efficiency and performance.
- Reliable Components: Built to handle high power output, extreme conditions, and heavy-duty driving.











