The aFe PROGUARD D2 fuel filter (part 44-FF012) is a replacement fuel filter for 2007.5-2009 Dodge Ram trucks with the 6.7L Cummins diesel. The line is built around synthetic filter media, and these fuel filters use a synthetic media for maximum filtration and minimal flow restriction. That matters on a Cummins, where clean fuel protects the injection system and where stock-level fuel flow is worth keeping intact if you add power.
Choosing this filter over a generic or stock-style replacement comes down to fit and fuel quality. The PROGUARD Fuel Filters are direct OE replacements which utilize the factory canisters to ensure a proper fit, so you are not modifying the housing to get it to seat. For 6.7 Cummins owners searching for a 44-FF012 replacement, a 2007.5-2009 Dodge 6.7 fuel filter upgrade, or an aFe PROGUARD D2 OE-style diesel filter, this is the drop-in option. Confirm the exact fitment against your truck's VIN and the manufacturer's current catalog before ordering.
