2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Fuel System & Fuel Upgrades

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AirDog A4SPBC188 I-4G 150GPH Fuel Lift Pump | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
AirDog A4SPBC188 I-4G 150GPH Fuel Lift Pump | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Air Dog

AirDog A4SPBC188 I-4G 150GPH Fuel Lift Pump | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PFTA4SPBC188
Sale price
$721
Regular price
$745
S&B 10-1010 65 Gallon Replacement Fuel Tank | 2004-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Crew Cab/Long Bed
S&B 10-1010 65 Gallon Replacement Fuel Tank | 2004-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Crew Cab/Long Bed

S&B Filters

S&B 10-1010 65 Gallon Replacement Fuel Tank | 2004-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax Crew Cab/Long Bed

SKU: SBT10-1010
Price
$1,449
Exergy E0510205 Inlet Metering Valve | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Exergy E0510205 Inlet Metering Valve | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Exergy Performance

Exergy E0510205 Inlet Metering Valve | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: EXYE0510205
Price
$189
Merchant 10298 Injector Copper | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10298 Injector Copper | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10298 Injector Copper | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT10298
Price
$31.72
Industrial 0986435504SEDFLY Reman Dragon Fly 15% Over Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Industrial 0986435504SEDFLY Reman Dragon Fly 15% Over Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Industrial Injection

Industrial 0986435504SEDFLY Reman Dragon Fly 15% Over Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: IIS0986435504SEDFLY
Sale price
$366.61
Regular price
$367.51
PPE 113158200 Fuel Injector Harness Pigtail with Connector | 2004-2007 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LLY/LBZ
PPE 113158200 Fuel Injector Harness Pigtail with Connector | 2004-2007 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LLY/LBZ

PPE

PPE 113158200 Fuel Injector Harness Pigtail with Connector | 2004-2007 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax LLY/LBZ

SKU: PPE113158200
Sale price
$26.99
Regular price
$29.99
Industrial 631601 Fuel Rail Plug | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Industrial 631601 Fuel Rail Plug | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial 631601 Fuel Rail Plug | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: IIS631601
Sale price
$38.75
Regular price
$47.10
Titan Fuel Tanks 7010201 52-Gallon Midship Fuel Tank | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax CCSB
Titan Fuel Tanks 7010201 52-Gallon Midship Fuel Tank | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax CCSB

Titan Tanks

Titan Fuel Tanks 7010201 52-Gallon Midship Fuel Tank | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax CCSB

SKU: TFT7010201
Sale price
$1,424.05
Regular price
$1,642.55
S&S Diesel CP3-DMX-SS SuperSport CP3 | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
S&S Diesel CP3-DMX-SS SuperSport CP3 | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

S&S Diesel

S&S Diesel CP3-DMX-SS SuperSport CP3 | 2001-2015 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: SASCP3-DMX-SS
Price
$1,130
PPE 113060601 CP3 Pump Inlet Fitting | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
PPE 113060601 CP3 Pump Inlet Fitting | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

PPE

PPE 113060601 CP3 Pump Inlet Fitting | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PPE113060601
Price
$14.39
FASS 32283R Electric Heater Element | Universal
FASS 32283R Electric Heater Element | Universal

Fass Fuel systems

FASS 32283R Electric Heater Element | Universal

SKU: FAS32283R
Sale price
$118.75
Regular price
$128.75
FASS FASC09100G 100GPH Adjustable Fuel Lift Pump | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
FASS FASC09100G 100GPH Adjustable Fuel Lift Pump | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fass Fuel systems

FASS FASC09100G 100GPH Adjustable Fuel Lift Pump | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FASFASC09100G
Price
$549
Exergy E04-20316 Reverse Rotation 10mm Stroker CP3 Pump | Universal
Exergy E04-20316 Reverse Rotation 10mm Stroker CP3 Pump | Universal

Exergy Performance

Exergy E04-20316 Reverse Rotation 10mm Stroker CP3 Pump | Universal

SKU: EXYE0420316
Price
$2,400
AirDog A7SPBC259 II-5G 100GPH Lift Pump | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
AirDog A7SPBC259 II-5G 100GPH Lift Pump | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Air Dog

AirDog A7SPBC259 II-5G 100GPH Lift Pump | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: PFTA7SPBC259
Price
$788
S&S Diesel LLY-10SAC-R-SET Remanufactured TorqueMaster Injector Set | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
S&S Diesel LLY-10SAC-R-SET Remanufactured TorqueMaster Injector Set | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

S&S Diesel

S&S Diesel LLY-10SAC-R-SET Remanufactured TorqueMaster Injector Set | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: SASLLY-10SAC-R-SET
Price
$2,610
Fleece FPE-FL-LLY-18 Injector #1 and #8 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Fleece FPE-FL-LLY-18 Injector #1 and #8 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Fleece Performance Products

Fleece FPE-FL-LLY-18 Injector #1 and #8 Line | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: FLCFPE-FL-LLY-18
Price
$69.99
Exergy E07-00010 High-Pressure Relief Valve | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Exergy E07-00010 High-Pressure Relief Valve | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Exergy Performance

Exergy E07-00010 High-Pressure Relief Valve | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: EXYE0700010
Price
$240
Merchant 10299 Injector Body Seal Kit | 2004.5-2007 GM 2500HD/3500HD 6.6L Duramax
Merchant 10299 Injector Body Seal Kit | 2004.5-2007 GM 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10299 Injector Body Seal Kit | 2004.5-2007 GM 2500HD/3500HD 6.6L Duramax

SKU: MAT10299
Price
$22.72
Industrial 0986437308SHOSE II-Reman 42% Over CP3 Pump | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Industrial 0986437308SHOSE II-Reman 42% Over CP3 Pump | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Industrial Injection

Industrial 0986437308SHOSE II-Reman 42% Over CP3 Pump | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: IIS0986437308SHOSE
Sale price
$1,106.72
Regular price
$1,228.49
Industrial 0986437308SE-IIS Stock Reman CP3 | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Industrial 0986437308SE-IIS Stock Reman CP3 | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Industrial Injection

Industrial 0986437308SE-IIS Stock Reman CP3 | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: IIS0986437308SE-IIS
Price
$630.45
Industrial 0986435504SE-IIS Reman Stock Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY
Industrial 0986435504SE-IIS Reman Stock Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Industrial Injection

Industrial 0986435504SE-IIS Reman Stock Injector | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

SKU: IIS0986435504SE-IIS
Price
$271.55
PPE 113156202 Fuel Injector Hold Down Platform | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax
PPE 113156202 Fuel Injector Hold Down Platform | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

PPE

PPE 113156202 Fuel Injector Hold Down Platform | 2001-2016 GM Sierra/Silverado 2500HD/3500HD 6.6L Duramax

SKU: PPE113156202
Sale price
$2.69
Regular price
$2.99
Merchant 97327722 Injector Copper | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 97327722 Injector Copper | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 97327722 Injector Copper | 2004.5-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT97327722
Price
$7.24
FASS NDTSPC10100G No-Drop Plus Series Diesel Fuel System (Stock - 600hp) | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
FASS NDTSPC10100G No-Drop Plus Series Diesel Fuel System (Stock - 600hp) | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Fass Fuel systems

FASS NDTSPC10100G No-Drop Plus Series Diesel Fuel System (Stock - 600hp) | 2001-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: FASNDTSPC10100G
Price
$849

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DIESEL TRUCK EXPERTS STANDING BY

The factory fuel system on your 2004.5-2005 GM Duramax 6.6L LML doesn’t provide the cleanest fuel injection, leading to prematurely worn injectors and various other complications down the line. At Alligator Performance, we offer a range of premium aftermarket fuel systems and accessories designed to extend the life of your injectors by ensuring optimal fuel filtration. Our complete aftermarket fuel systems include a fuel pump and water separator that filter diesel fuel in your GM 2500HD/3500HD to extremely low micron levels, preventing contaminants from damaging your engine. For trucks operating in cold conditions, consider our Electric Heater Kits to eliminate the risk of fuel gelling, which can hinder cold starts. We carry trusted brands such as FASS, AirDog, Irate Diesel, and more to provide you with the best fuel upgrades for your 2004.5-2005 GM 2500/3500 Truck. Pair your fuel system upgrades with our Engine Upgrades! GM Duramax Fitments: 2004, 2005 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY

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