aFe 44-FF011 Pro Guard D2 Fuel/Water Separator Filter for 2001-2016 GM 6.6L

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Product Specification:

SKU:AFE44-FF011

MPN: 44-FF011

UPC: 802959440285

Weight: 1.3 lb

Inventory: 6

Type: Fuel Filters

Vehicle Fitment

2001-2004 Chevrolet Silverado 2500HD / 3500HD (6.6L V8 Duramax LB7, Diesel)
2004.5-2005 Chevrolet Silverado 2500HD / 3500HD (6.6L V8 Duramax LLY, Diesel)
2006-2007 Chevrolet Silverado 2500HD / 3500HD (6.6L V8 Duramax LBZ, Diesel)
2007.5-2010 Chevrolet Silverado 2500HD / 3500HD (6.6L V8 Duramax LMM, Diesel)
2011-2016 Chevrolet Silverado 2500HD / 3500HD (6.6L V8 Duramax LML, Diesel)
2001-2004 GMC Sierra 2500HD / 3500HD (6.6L V8 Duramax LB7, Diesel)
2004.5-2005 GMC Sierra 2500HD / 3500HD (6.6L V8 Duramax LLY, Diesel)
2006-2007 GMC Sierra 2500HD / 3500HD (6.6L V8 Duramax LBZ, Diesel)
2007.5-2010 GMC Sierra 2500HD / 3500HD (6.6L V8 Duramax LMM, Diesel)
2011-2016 GMC Sierra 2500HD / 3500HD (6.6L V8 Duramax LML, Diesel)

Fitment Notes

Designed exclusively for 6.6L Duramax diesel engines; does not fit gasoline, flex-fuel, or 3.0L Duramax (LM2/LZ0) engines
Does not fit 2017+ L5P Duramax engines
Does not fit Silverado / Sierra 1500 or 1500HD models
Equivalent to GM P/N 12633243, AC Delco P/N TP3012, and Racor P/N PFF50216

Features

Uses exclusive NF21 synthetic filter media for maximum filtration with minimal flow restriction
Integrated water separator removes moisture from diesel fuel to protect injection components
Up to 99% filtration efficiency - guards against dirt, rust, and contaminants
Meets or exceeds GM OEM fuel filter specifications
Direct OE replacement design - uses factory canister housing for hassle-free installation
High-flow design rated up to 50 GPH maximum flow rate
Rated for maximum working pressure of 30 PSI
Comes complete with replacement gaskets where required

Specifications

Filter Media: NF21 Synthetic
Filtration Efficiency: Up to 99%
Water Removal Efficiency: 99%
Maximum Flow Rate: 50 GPH
Maximum Working Pressure: 30 PSI
Inlet Size: 3/8 in. (0.375 in.) Female Threads
Center Thread Size: 3/8 in.-8
Filter Style: Inline / Canister (OEM-style)
Fuel Type: Diesel
Shipping Weight: 2.0 lbs

Included Components

1x aFe Pro Guard D2 Fuel/Water Separator Filter (44-FF011)
1x Replacement Gasket (where applicable)

Product Description

The aFe Pro Guard D2 Fuel/Water Separator Filter (44-FF011) is a direct OE replacement fuel filter engineered specifically for 2001-2016 GM 6.6L Duramax diesel trucks. Using aFe's exclusive NF21 synthetic filter media, it delivers up to 99% filtration efficiency, trapping dirt, rust, and debris before they can reach sensitive fuel injectors and high-pressure fuel pumps. The built-in water separator removes moisture from the fuel supply with 99% efficiency, providing an added layer of protection in demanding diesel environments.

This filter supports a maximum flow rate of 50 GPH at up to 30 PSI working pressure, ensuring clean, unrestricted fuel delivery under heavy load, towing, and daily driving conditions. It installs directly into the factory filter canister housing with no modifications required, making it an ideal maintenance replacement for LB7, LLY, LBZ, LMM, and LML Duramax owners looking for a reliable, high-performance upgrade over the stock filter.