The diesel fuel in your truck contains contaminants dirt, water and air/vapor which is reducing power and damaging your diesel fuel injectors. aFe's POWER DFS780 Diesel Fuel System, with its patent-pending design, is capable of removing power-robbing debris such as air, water and other contaminants. The DFS780 also boosts fuel pressure ensuring constant availability for the high-pressure pump, improving throttle response and horsepower at all RPMs.
DFS780 Fuel Pump (Full-time Operation) Dodge Diesel Trucks 03-04 L6-5.9L (td)
2003-2004 Dodge Ram 3500 (Liter: 5.9 & Cylinder: 6 & Block: L); 2003-2004 Dodge Ram 2500 (Liter: 5.9 & Cylinder: 6 & Block: L)

Fitment:
Dodge Ram 2500 Laramie 2003
Dodge Ram 2500 SLT 2003
Dodge Ram 2500 SLT 2004
Dodge Ram 2500 ST 2003
Dodge Ram 2500 ST 2004
Dodge Ram 3500 Laramie 2003
Dodge Ram 3500 Laramie 2004
Dodge Ram 3500 SLT 2003
Dodge Ram 3500 SLT 2004
Dodge Ram 3500 ST 2003
Dodge Ram 3500 ST 2004