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  1. Home
  2. GM Duramax
  3. 2001-2004 GM Duramax 6.6L LB7
  4. Fuel Upgrades

2001-2004 GM Duramax 6.6L LB7 Fuel Upgrades

One of the biggest concerns on the 2001-2004 GM 6.6L Duramax LB7 is its restrictive factory fuel system that fails to inject the cleanest diesel fuel possible. The result � prematurely worn injectors that cause a ton of unnecessary hassles down the road. Here at Alligator Performance, we offer a variety of premium aftermarket fuel systems along with other fuel accessories that will help extend the life of your injectors by providing clean fuel filtration without compromise. These complete aftermarket fuel system come standard with both a fuel pump and water separator that filters the diesel fuel in your GM 2500/3500 to extremely low micron ratings in order to prevent contaminants from affecting your engine. If you reside in an area that sees mostly cold temperatures, you may want to check out one of the Electric Heater Kits we offer to eliminate any potential fuel gelling which makes it difficult to cold start your engine. Luckily for you, we only work with trusted and reliable brands such as FASS, AirDog, Irate Diesel and more to bring you the best possible fuel upgrades for your 2001-2004 GM Sierra/Silverado. GM Duramax Fitments: 2001, 2002, 2003, 2004 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>2001-2004 6.6L LB7
  • Fuel Lift Pumps Fuel Lift Pumps
  • CP3 Kits CP3 Kits
  • Injectors Injectors
  • Injector Nozzles Injector Nozzles
  • Injector Lines Injector Lines
  • Fuel Sumps Fuel Sumps
  • Fuel Filters Fuel Filters

Products [37]

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Item In Cart 01-14 GM 2500/3500HD 6.6L Duramax and 98-12 Dodge Ram 2500 / 3500 Cummins 5.9L/6.7L BD Flow-Max Add-On Pre Water Separator Kit
01-14 GM 2500/3500HD 6.6L Duramax and 98-12 Dodge Ram 2500 / 3500 Cummins 5.9L/6.7L BD Flow-Max Add-On Pre Water Separator Kit
In Stock. Ships in 1 Business Day!
$84.95 $76.46 Sale
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Item In Cart 01-04 GM 2500/3500HD 6.6L Duramax LB7 BD Premium Stock Fuel Injector
01-04 GM 2500/3500HD 6.6L Duramax LB7 BD Premium Stock Fuel Injector
- Ships from Manufacturer in 1-2 Business Days
$324.95 $292.46 Sale
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Item In Cart 01-04 GM 2500/3500HD 6.6L Duramax LB7 Dynomite 50HP Injector SET
01-04 GM 2500/3500HD 6.6L Duramax LB7 Dynomite 50HP Injector SET
In Stock. Ships in 1 Business Day!
$3,266.94
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Item In Cart 01-04 GM 2500 / 3500HD 6.6L Duramax LB7 Dynomite Diesel Reman Stock Injector
01-04 GM 2500 / 3500HD 6.6L Duramax LB7 Dynomite Diesel Reman Stock Injector
In Stock. Ships in 1 Business Day!
$311.39
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Item In Cart 01-10 GM 6.6L Duramax 2500HD / 3500HD  FASS Flow Enhancer Fuel Pump
01-10 GM 6.6L Duramax 2500HD / 3500HD FASS Flow Enhancer Fuel Pump
In Stock. Ships in 1 Business Day!
$426.55
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Item In Cart 01-10 GM 2500HD / 3500HD 6.6L Duramax FASS Titanium Signature 100GPH Fuel Lift Pump
01-10 GM 2500HD / 3500HD 6.6L Duramax FASS Titanium Signature 100GPH Fuel Lift Pump
In Stock. Ships in 1 Business Day!
$699.00 $679.00 Sale
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Item In Cart 01-10 GM 2500HD / 3500HD 6.6L Duramax FASS Titanium Signature 165GPH Fuel Lift Pump
01-10 GM 2500HD / 3500HD 6.6L Duramax FASS Titanium Signature 165GPH Fuel Lift Pump
In Stock. Ships in 1 Business Day!
$749.00 $729.00 Sale
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Item In Cart 01-16 GM 2500HD / 3500HD 6.6L Duramax FASS 290GPH Titanium Signature Series Fuel Lift Pump
01-16 GM 2500HD / 3500HD 6.6L Duramax FASS 290GPH Titanium Signature Series Fuel Lift Pump
In Stock. Ships in 1 Business Day!
$899.00 $849.00 Sale
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Item In Cart 01-16 GM 2500HD / 3500HD 6.6L Duramax FASS Titanium Signature Series 250GPH 8-10PSI Fuel Lift Pump
01-16 GM 2500HD / 3500HD 6.6L Duramax FASS Titanium Signature Series 250GPH 8-10PSI Fuel Lift Pump
In Stock. Ships in 1 Business Day!
$849.00 $799.00 Sale
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Item In Cart 2001-10 GM 6.6L Duramax 2500HD / 3500HD  2500/3500 CCSB Titan Fuel Tanks 7010201 52 Gallon Midship Fuel Tank
2001-10 GM 6.6L Duramax 2500HD / 3500HD 2500/3500 CCSB Titan Fuel Tanks 7010201 52 Gallon Midship Fuel Tank
In Stock. Ships in 1 Business Day!
$1,642.55
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Item In Cart 2001-10 GM 6.6L Duramax 2500HD / 3500HD  2500/3500 CCLB Titan Fuel Tanks 7010301 62 Gallon Midship Tank
2001-10 GM 6.6L Duramax 2500HD / 3500HD 2500/3500 CCLB Titan Fuel Tanks 7010301 62 Gallon Midship Tank
In Stock. Ships in 1 Business Day!
$1,851.55
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Item In Cart Fleece FPE-DMAX-CP3-10MM PowerFlo 750 CP3 | 01-16 GM 6.6L Duramax 2500HD / 3500HD
Fleece FPE-DMAX-CP3-10MM PowerFlo 750 CP3 | 01-16 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$1,895.00
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Item In Cart Fleece FPE-DMAX-CP3K Modified CP3K | 01-16 GM 6.6L Duramax 2500HD / 3500HD
Fleece FPE-DMAX-CP3K Modified CP3K | 01-16 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$1,199.00
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Item In Cart Deviant Raw Fuel Sump
Deviant Raw Fuel Sump
In Stock. Ships in 1 Business Day!
$160.00 $144.00 Sale
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Item In Cart Deviant Return Fuel Tank Sump
Deviant Return Fuel Tank Sump
- Ships in 3-5 Business Days
$179.00 $161.10 Sale
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Item In Cart 01-10 GM 2500/3500HD 6.6L Duramax PPE 113060900 CP3 Pump Fuel Feed Line Kit
01-10 GM 2500/3500HD 6.6L Duramax PPE 113060900 CP3 Pump Fuel Feed Line Kit
In Stock. Ships in 1 Business Day!
$35.99
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Item In Cart 01-04 GM 6.6L Duramax 2500HD / 3500HD  PPE Race Fuel Valve
01-04 GM 6.6L Duramax 2500HD / 3500HD PPE Race Fuel Valve
In Stock. Ships in 1 Business Day!
$41.39
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Item In Cart PPE 513010100 Fuel Rail Pressure Harness | 01-10 GM 6.6L Duramax 2500HD / 3500HD
PPE 513010100 Fuel Rail Pressure Harness | 01-10 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$44.99
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Item In Cart 01-10 GM 2500/3500HD 6.6L Duramax Longhorn Heavy Duty AirDog Mount & Skid Plate
01-10 GM 2500/3500HD 6.6L Duramax Longhorn Heavy Duty AirDog Mount & Skid Plate
In Stock. Ships in 1 Business Day!
$251.73
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Item In Cart Merchant 10006 Fuel Filter Head Spacer Kit | 01-10 GM 6.6L Duramax 2500HD / 3500HD  Lb7 Lly Lbz Lmm
Merchant 10006 Fuel Filter Head Spacer Kit | 01-10 GM 6.6L Duramax 2500HD / 3500HD Lb7 Lly Lbz Lmm
In Stock. Ships in 1 Business Day!
$8.54
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Item In Cart 01-10 GM 6.6L Duramax 2500HD / 3500HD  AirDog Fuel Lift Pump (150GPH)
01-10 GM 6.6L Duramax 2500HD / 3500HD AirDog Fuel Lift Pump (150GPH)
In Stock. Ships in 1 Business Day!
$670.00 $599.00 Sale
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Item In Cart 01-10 GM 6.6L Duramax 2500HD / 3500HD  AirDog II-4G 100 Fuel Lift Pump (100GPH)
01-10 GM 6.6L Duramax 2500HD / 3500HD AirDog II-4G 100 Fuel Lift Pump (100GPH)
- Ships in 3-5 Business Days
$755.00
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Item In Cart S&B 10-1023 62 Gallon Replacement Fuel Tank | 01-04 GM 6.6L Duramax 2500HD / 3500HD  CCSB
S&B 10-1023 62 Gallon Replacement Fuel Tank | 01-04 GM 6.6L Duramax 2500HD / 3500HD CCSB
In Stock. Ships in 1 Business Day!
$1,349.00
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Item In Cart Transfer Flow 0800116206 40 Gallon Refueling Tank System
Transfer Flow 0800116206 40 Gallon Refueling Tank System
- Call 208-719-7400 for Availablity
$1,790.87
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Item In Cart Transfer Flow 50 Gallon Refueling Tank System 0800109417 | Universal Trucks
Transfer Flow 50 Gallon Refueling Tank System 0800109417 | Universal Trucks
- Call 208-719-7400 for Availablity
$1,687.64
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Item In Cart Transfer Flow 0800109420 82 Gallon Refueling Tank System | Universal Trucks
Transfer Flow 0800109420 82 Gallon Refueling Tank System | Universal Trucks
- Call 208-719-7400 for Availablity
$1,914.06
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Item In Cart 01-04 GM 2500/3500HD 6.6L Duramax LB7 Dynomite Injector Line Set
01-04 GM 2500/3500HD 6.6L Duramax LB7 Dynomite Injector Line Set
In Stock. Ships in 1 Business Day!
$380.00
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Item In Cart AirDog A7SABC512 II-5G 220GPH Lift Pump | 01-10 GM 6.6L Duramax 2500HD / 3500HD
AirDog A7SABC512 II-5G 220GPH Lift Pump | 01-10 GM 6.6L Duramax 2500HD / 3500HD
In Stock. Ships in 1 Business Day!
$899.00
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Item In Cart 01-10 GM 6.6L Duramax 2500HD / 3500HD Wehrli Relocation Mount for FASS Lift Pump
01-10 GM 6.6L Duramax 2500HD / 3500HD Wehrli Relocation Mount for FASS Lift Pump
- In Stock. Ships in 3-5 business days.
$92.15
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Item In Cart Wehrli 100231 Twin CP3 Kit | 01-04 GM 6.6L Duramax 2500HD / 3500HD  LB7
Wehrli 100231 Twin CP3 Kit | 01-04 GM 6.6L Duramax 2500HD / 3500HD LB7
- In Stock. Ships in 7-10 business days.
$1,256.15
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Item In Cart 04-10 GM 2500/3500HD 6.6L Duramax PPE Pressure Relief Release Valve Shim Kit 50 States Legal 113072000
04-10 GM 2500/3500HD 6.6L Duramax PPE Pressure Relief Release Valve Shim Kit 50 States Legal 113072000
In Stock. Ships in 1 Business Day!
$8.99
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Item In Cart 01-16 GM 2500/3500HD 6.6L Duramax PPE Air Bleeder Screw 113059520
01-16 GM 2500/3500HD 6.6L Duramax PPE Air Bleeder Screw 113059520
- Ships from Manufacturer in 3-5 Business Days
$13.49
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Item In Cart 02-10 GM 2500 / 3500 6.6L Duramax PPE Replacement Dual Fueler HD Serpentine Belt for PPE Oil Centerfuge Filtration Kit
02-10 GM 2500 / 3500 6.6L Duramax PPE Replacement Dual Fueler HD Serpentine Belt for PPE Oil Centerfuge Filtration Kit
- Ships from Manufacturer in 3-5 Business Days
$62.99
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Item In Cart 01-10 GM 2500/3500HD 6.6L Duramax AirDog 4G 100GPH Lift Pump A4SPBC185
01-10 GM 2500/3500HD 6.6L Duramax AirDog 4G 100GPH Lift Pump A4SPBC185
In Stock. Ships in 1 Business Day!
$729.00
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Item In Cart 01-10 GM 6.6L Duramax 2500HD / 3500HD  AirDog I-4G Fuel Lift Pump (150GPH) A4SPBC188
01-10 GM 6.6L Duramax 2500HD / 3500HD AirDog I-4G Fuel Lift Pump (150GPH) A4SPBC188
In Stock. Ships in 1 Business Day!
$759.00
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Item In Cart 01-04 GM 2500 / 3500HD 6.6L Duramax LB7 BD Injector Install Kit 1050141
01-04 GM 2500 / 3500HD 6.6L Duramax LB7 BD Injector Install Kit 1050141
Call 208-719-7400 for Availability!
$769.95 $692.96 Sale
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Item In Cart Industrial Injection 0928400535-IIS Replacement FCA | 01-04 GM 6.6L Duramax 2500HD / 3500HD  LB7
Industrial Injection 0928400535-IIS Replacement FCA | 01-04 GM 6.6L Duramax 2500HD / 3500HD LB7
In Stock. Ships in 1 Business Day!
$209.44
View Details
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    • 2003-2004 5.9L Cummins
      • Engine Upgrades
      • Exhaust Kits
      • Leveling Kits
      • Lift Kits
      • Tonneau Covers
      • Exterior
      • View More

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