Collection: 2004.5-2005 6.6L LLY Duramax Fuel System Upgrades
2004.5-2005 6.6L LLY Duramax Fuel System Upgrades
Boost the performance and efficiency of your 2004.5-2005 6.6L LLY Duramax with our top-tier fuel system upgrades. Designed to improve fuel delivery, optimize combustion, and increase horsepower, these components are essential for drivers looking to push their Duramax to its full potential. Whether...
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Fleece Performance '-6 AN Straight to Hose Barb FPE-PL-00-06
Regular price $6.99 USDSale price $6.99 USD Regular priceUnit price / per -
Fleece Performance '-8 Straight to Hose Barb Black FPE-PL-00-08
Regular price $7.99 USDSale price $7.99 USD Regular priceUnit price / per -
Fleece Performance '-6 90 Deg to Hose Barb Black FPE-PL-90-06
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance '-8 90 Degree to Hose Barb Black FPE-PL-90-08
Regular price $13.99 USDSale price $13.99 USD Regular priceUnit price / per -
FASS Adjustable Fuel Pressure Regulator
Regular price $141.55 USDSale price $141.55 USD Regular priceUnit price / per -
FASS High Output Heater Disk
Regular price $160.55 USDSale price $160.55 USD Regular priceUnit price / per -
S&B 10-1010 65-Gallon Replacement Fuel Tank
Regular price $1,449.00 USDSale price $1,449.00 USD Regular priceUnit price / per -
S&B 10-1006 62-Gallon Replacement Fuel Tank
Regular price $1,349.00 USDSale price $1,349.00 USD Regular priceUnit price / per -
Fleece Performance FPE-PL-45-06 6AN 45-Degree to Hose Barb – Black
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance '-8 45 Degree to Hose Barb Black FPE-PL-45-08
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance -10 90 Deg to Hose Barb Black FPE-PL-90-10
Regular price $14.99 USDSale price $14.99 USD Regular priceUnit price / per -
Fleece Performance 9/16 Inch -18 Hex Socket Plug w/ O-Ring FPE-SP-91618
Regular price $4.49 USDSale price $4.49 USD Regular priceUnit price / per -
Fleece Performance 3/14 Inch-16 Hex Socket Plug w/ O-Ring FPE-SP-3416
Regular price $4.99 USDSale price $4.99 USD Regular priceUnit price / per -
Fleece Performance FPE-34805-A 10 AN to 7/8-14 Straight Male Adapter – Black (Without O-Ring)
Regular price $14.96 USDSale price $14.96 USD Regular priceUnit price / per -
Fleece Performance 12mm Quick Connect to 3/4 Inch-16 O-ring (-8 AN) FPE-34550-A
Regular price $15.99 USDSale price $15.99 USD Regular priceUnit price / per -
Fleece Performance 3/8 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) FPE-34551-A
Regular price $14.99 USDSale price $14.99 USD Regular priceUnit price / per -
Fleece Performance 5/16 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) FPE-34552-A
Regular price $11.99 USDSale price $11.99 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) FPE-34553-A
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per -
Fleece Performance 5/8 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) FPE-34554-A
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) FPE-34900-A
Regular price $16.99 USDSale price $16.99 USD Regular priceUnit price / per -
Fleece Performance FPE-34789 PowerFlo In-Tank Lift Pump for 2004.5-2010 Duramax
Regular price $769.00 USDSale price $769.00 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch CP3 Feed Fitting FPE-CP3-FEED
Regular price $15.95 USDSale price $15.95 USD Regular priceUnit price / per -
Fleece Performance FPE-AN971-10DRD 10AN Aluminum Male Weld Bung – 5/8" Register, 7/8" OD
Regular price $8.35 USDSale price $8.35 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 -
Fleece Performance 16 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-16
Regular price $60.00 USDSale price $60.00 USD Regular priceUnit price / per -
Fleece Performance 17 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-17
Regular price $62.00 USDSale price $62.00 USD Regular priceUnit price / per -
Fleece Performance 18 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-18
Regular price $64.00 USDSale price $64.00 USD Regular priceUnit price / per -
Fleece Performance 19 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-19
Regular price $66.00 USDSale price $66.00 USD Regular priceUnit price / per
2004.5-2005 6.6L LLY Duramax Fuel System Upgrades
Boost the performance and efficiency of your 2004.5-2005 6.6L LLY Duramax with our top-tier fuel system upgrades. Designed to improve fuel delivery, optimize combustion, and increase horsepower, these components are essential for drivers looking to push their Duramax to its full potential. Whether you're aiming for better towing performance, more power for off-roading, or improved fuel economy, our fuel system upgrades provide the performance and reliability you need.
High-Performance Fuel System Upgrades for 6.6L LLY Duramax
Our fuel system components for the 2004.5-2005 6.6L LLY Duramax are engineered to maximize fuel flow and improve overall engine efficiency. These upgrades include high-flow fuel injectors, fuel pumps, filters, and other critical components designed to deliver more consistent fuel delivery and better fuel atomization. With these parts, you’ll experience smoother acceleration, improved power output, and optimized fuel efficiency.
Why Choose Our Fuel System Upgrades?
Upgrading your fuel system ensures that your engine receives the proper fuel flow to maximize performance. Whether you’re increasing horsepower for heavy towing, seeking a more responsive throttle, or just looking to improve your truck’s efficiency, these upgrades provide the solution. Our high-performance fuel components will improve combustion efficiency and ensure that your engine is getting the clean, high-quality fuel it needs.
Key Features:
- Increased Fuel Flow: High-flow injectors and pumps provide the fuel your engine needs for optimal performance.
- Enhanced Efficiency: Improved fuel delivery and atomization lead to better combustion, fuel economy, and engine response.
- Reliability: Built to withstand extreme conditions and improve the lifespan of your Duramax fuel system.








