2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Fuel System & Fuel Upgrades

FREE SHIPPING ON ALL
ORDERS OVER $70

PRICE MATCH
GUARANTEE

BUILD NOW, PAY LATER
FINANCING OPTIONS

30-DAY RETURN
SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS STANDING BY

Availability
Price
$0
$6,634.47
Rating
Vendor
Year
Make
Model
Loading products...
Filter
209 products
Sort by:
Best selling
Availability
Price
$0
$6,634.47
Rating
Vendor
Year
Make
Model
AirDog FF100-2 2 Micron Replacement Fuel Filter | Universal
Quick shop
AirDog FF100-2 2 Micron Replacement Fuel Filter | Universal

AirDog FF100-2 2 Micron Replacement Fuel Filter | Universal

Price
$28
FASS XWS3002 Extreme Series Water Separator Filter | Universal
Quick shop
FASS XWS3002 Extreme Series Water Separator Filter | Universal
FASS XWS3002 Extreme Series Water Separator Filter | Universal

FASS XWS3002 Extreme Series Water Separator Filter | Universal

Price
$29.45
AirDog WS100 Water Separator | Universal
Quick shop
AirDog WS100 Water Separator | Universal

AirDog WS100 Water Separator | Universal

Price
$31
FASS SK5501 Feed/Return Style Sump Kit | Universal
Quick shop
FASS SK5501 Feed/Return Style Sump Kit | Universal

FASS SK5501 Feed/Return Style Sump Kit | Universal

Price
$169
FASS PF3001XL Extended Length Fuel Particulate Filter | Universal
Quick shop
FASS PF3001XL Extended Length Fuel Particulate Filter | Universal
FASS PF3001XL Extended Length Fuel Particulate Filter | Universal

FASS PF3001XL Extended Length Fuel Particulate Filter | Universal

Price
$23.75
FASS PF3001 Replacement Fuel Particulate Filter | Universal
Quick shop
FASS PF3001 Replacement Fuel Particulate Filter | Universal
FASS PF3001 Replacement Fuel Particulate Filter | Universal

FASS PF3001 Replacement Fuel Particulate Filter | Universal

Price
$20.90
FASS TSC11100G Titanium Signature Series 100GPH Lift Pump | 2011-2014 Silverado/Sierra 2500HD/3500HD 6.6L
Quick shop
FASS TSC11100G Titanium Signature Series 100GPH Lift Pump | 2011-2014 Silverado/Sierra 2500HD/3500HD 6.6L
FASS TSC11100G Titanium Signature Series 100GPH Lift Pump | 2011-2014 Silverado/Sierra 2500HD/3500HD 6.6L

FASS TSC11100G Titanium Signature Series 100GPH Lift Pump | 2011-2014 Silverado/Sierra 2500HD/3500HD 6.6L

Price
$689
FASS TSC12165G Titanium Signature 165GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Quick shop
FASS TSC12165G Titanium Signature 165GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L
FASS TSC12165G Titanium Signature 165GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L

FASS TSC12165G Titanium Signature 165GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Price
$729
Exergy E05-10505 Inlet Metering Valve | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Quick shop
Exergy E05-10505 Inlet Metering Valve | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Exergy E05-10505 Inlet Metering Valve | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Price
$275
Fleece FPE-LML-CP3-WP CP3 Conversion Kit with Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Quick shop
Fleece FPE-LML-CP3-WP CP3 Conversion Kit with Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Fleece FPE-LML-CP3-WP CP3 Conversion Kit with Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Fleece FPE-LML-CP3-WP CP3 Conversion Kit with Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Sale price
$1,999
Regular price
$2,098.95
FASS TSC12100G Titanium Signature Series 100GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Quick shop
FASS TSC12100G Titanium Signature Series 100GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L
FASS TSC12100G Titanium Signature Series 100GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L

FASS TSC12100G Titanium Signature Series 100GPH Fuel Lift Pump | 2015-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Price
$699
Wehlri 100269 Relocation Mount for FASS Lift Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L
5.0
Quick shop
Wehlri 100269 Relocation Mount for FASS Lift Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L
Wehlri 100269 Relocation Mount for FASS Lift Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Wehlri 100269 Relocation Mount for FASS Lift Pump | 2011-2016 Silverado/Sierra 2500HD/3500HD 6.6L

Price
$105.73
Loading products...

Shop This Make By

The stock fuel system on your 2011-2016 GM Duramax 6.6L LML does not inject the cleanest fuel possible, leaving you with prematurely worn injectors and a ton of other unnecessary hassles down the line. 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. Our complete aftermarket fuel systems come standard with both a fuel pump and water separator that filters the diesel fuel in your GM 2500HD/3500HD to extremely low micron ratings in order to prevent contaminants from affecting your engine. For trucks that see cold temperatures, check out our Electric Heater Kits we offer to eliminate any potential fuel gelling which makes it difficult to cold start your engine. Alligator Performance offers trusted and reliable brands such as FASS, AirDog, Irate Diesel and more to bring you the best possible fuel upgrades for your 2011-2016 GM 2500/3500 Truck. Pair your fuel system upgrades with our Engine Upgrades! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 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>2011-2016 6.6L LML

Can We Help You Find Something?

Give us a call: +1-208-719-7400

THE GARAGE

The Garage

Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.