Benefits of FASS (Fuel Air Separation System) Removes Air / Vapor from Fuel Consistent Flow of Fuel  Reliable High Volume Pumps Increase Horsepower Increase Torque Increase Fuel Economy 13,000-15,000 Hour Life Expectancy That Equates to 500,000 Plus Miles Up to 260 GPH 160 Max PSI Interchangeable Filters Lifetime Warranty

But what's the point of removing entrained air from diesel fuel?
Diesel engines and fuel systems are designed on a test bench in optimum conditions.  However, our trucks are obviously RARELY used in optimum conditions.  We drive on rough roads with varying speeds and RPM's in different climates, barometric pressures, and humidity.  All of these factors lead to great amounts of air and vapors being accumulated into our fuel tank, fuel lines, etc.  Entrained air in the fuel system can create any or all of the following symptoms:

Low Horsepower Low Fuel Mileage / Poor Fuel Mileage Excessive Smoke Injector Failure Hard Start or Will Not Start Engine Surges at Low Idle Warm Engine Runs Rough or Misfires in Operating Range Rough Idle Engine Will Not Reach Rated Speed When Loaded

FASS Configurations: 

Platinum Series is the new FASS Series that features a two-in-one water separator and fuel filter.

Titanium Series is the same as the old FASS 95 Series which has a new, smaller, more compact set-up with smaller filters. Filter life is about 1/3 to 1/2 that of the HD Series filters.

HD Series is the same as the old FASS 150 Series which is the same FASS system that we have been selling for quite some time. Uses the same filters as before.

HPFP ( High Performance Fuel Pumps ) are available for those wanting a reliable fuel system without the added filtering.

FASS Flow Rates:

95gph is for stock to 600HP applications. This is the kit for most people.

150gph is for 600HP to 700HP applications.

200gph is for 700HP+ applications only.

Note: You do not want to run a pump with a higher gallon per hour rating than your engines horsepower or the life of the FASS fuel pump will be greatly reduced. Pump noise is greatly enhanced with the larger flowing pumps.

Note:  All FASS Fuel Air Separator Systems and the High Performance Fuel Pump systems are complete kits. They come with the hoses, fittings, mounting hardware, etc to do the job. Everything needed to complete the install should be included, except tools and wire ties. 

If you have a 98.5-04.5 truck it came from the factory with a block mounted lift pump.  Dodge has retrofitted many of these trucks with the later in-tank pumps.  Before ordering you need to determine where your current lift pump is.  This can easily be done by turning the key on and listening for the pump.  If you have the in-tank retrofit kit you will need to order a pick-up tube kit (sku# STK-1001), which is available in the drop down labeled "Lift Pump Location," and you will choose the option "In-Tank."

Ordering Replacement Fuel Filters and Water Separators

This is a a great time to grab a few replacement filters with your new FASS system. Below you can add an extra Water Separator/Fuel Filter. It is always recommended that you keep a spare filter in your truck at all times. We recommend the fuel filter being changed every 12k-15k miles. We have talked to FASS directly and they state the fuel filter should be replaced at about 30k miles. It is your choice what to do. The new water separator should be replaced ever 30k miles. They are not lifetime water separators, but throw away.