3rd gen 5.9 2003-2004

When the fuel temperature drops below 34° Fahrenheit, the thermostatically controlled High Output Fuel Heater Disk will automatically power on. Fuel is then heated by the 300 watt heating element as the fuel is entering the FASS System, preventing gelling of the diesel fuel...

This splitter allows for easy connection if you are utilizing (2) dual FASS Electric Heater Probes (HKS1001). The splitter will work for the Titanium Series and the Titanium Signature Series FASS Fuel System. The FASS Heater Kit Splitter will work on the Titanium Series and Titanium...

A replacement element for our FASS Electric Heater (HK-1001). This item is intended for replacement parts only. This item comes with one (1) electric heater replacement element and one (1) HB-1001-A Ready for Use- Heater Bushing. This FASS Electric Replacement Heater Element will work on the Titanium Series...

If your truck is equipped with a flatbed, utility bed, or if you have a snow plow truck that is subjected to heavy rust and corrosion, this bracket may better suit your needs. We've developed this bracket with durability and mounting flexibility in mind....

Our new, more efficient Extreme Water Separator is rated @ 2 microns absolute. The reason our water separator no longer has a drain is because the filter element itself traps the water. The new XWS-1002 MUST be used in conjunction with the PF3001XL, the...

Our FASS Fuel Systems Signature Series Adjustable Diesel Fuel Pumps are designed to be the most versatile high performance fuel pump on the market that allows for adjustable fuel pressures to meet the demand of high-performance Dodge RAM applications. Manufactured with the same motor...

The FASS Fuel Systems Cummins Fuel Distribution Block is designed for high performance applications that are utilizing up to three CP3s but can also be used on single or dual CP3 applications. Our uniquely shaped Fuel Distribution Block allows us to have a smooth...

Part No: COMP330G The Competition Series diesel fuel system was specifically designed for high performance diesel applications that demand a large volume of fuel supply. Each Competition Series System comes equipped with our new High Flow Adjustable Regulator which can provide excellent pressure regulation...

The Competition Series diesel fuel system was specifically designed for high performance diesel applications that demand a large volume of fuel supply.Each Competition Series System comes equipped with our new High Flow Adjustable Regulator which can provide excellent pressure regulation up to 600 gallons...

Part No: COMP540G The Competition Series diesel fuel system was specifically designed for high performance diesel applications that demand a large volume of fuel supply. Each Competition Series System comes equipped with our new High Flow Adjustable Regulator which can provide excellent pressure regulation...

Part No: FLP3000XL Perfect for the shop or keeping your garage stocked, each FASS Fuel Fleet Filter Pack contains three (3) (XWS3002XL) Extreme Water Separator, and three (3) (PF3001XL) Particulate Filter Designed with convenience in mind, our new filter packs make it easy to...

Part No: FLEET FILTER PACK Perfect for the shop or keeping your garage stocked, each FASS Fuel Fleet Filter Pack contains three (3) (XWS3002) Extreme Water Separator, and three (3) (PF3001) Particulate Filter Designed with convenience in mind, our new filter packs make it...

Part No: FPR-2001 The FASS Diesel Fuel Systems High Flow Adjustable Fuel Pressure Regulator was engineered to accurately adjust fuel pressure in applications up to 600 GPH. The High Flow Adjustable Fuel Pressure Regulator is the same regulator that we supply with our Competition...

Part No: DRP04 The FASS Dodge Replacement Pump is a complete replacement diesel fuel lift pump for your Dodge Cummins 24V Common Rail diesel engine and is designed to eliminate the common issues found in factory lift pumps that are known for their costly...

FASS Fuel Systems Fuel System Wiring Harnesses: Proper wiring is crucial to the performance and longevity of your fuel system. Ensure that your FASS fuel system is receiving full voltage from the electrical source with a FASS Fuel Systems wiring harness. These heavy-duty replacements...

FASS Fuel Systems FASS Titanium Series Optional Electric Diesel Fuel Heater Kit Our Titanium Series Electric Heater Kits are an upgrade for FASS Systems being used in extremely cold climates. Each FASS Titanium Series pump has 2 ports for electric heaters which help aid...

FASS FUEL SYSTEMS 2003-2004 DODGE DIRECT REPLACEMENT PUMPS RELOCATION KIT (RK-04) Our Direct Replacement Pump Relocation Kit allow for your new DRP pump to be placed further back, closer to the fuel tank. This will reduce the distance the lift pump needs to pull...

The FASS Diesel Fuel Systems XL Filter Pack is your all-in-one maintenance solution. Perfect for stocking your shop or prepping for regular servicing, this bundle includes both the new Extreme Water Separator and a matched particulate filter—making it simple to keep your FASS fuel...

Part No: FPR1001Supersedes Part No: FPR-1001 The FASS Fuel Systems Adjustable Fuel Pressure Regulator is intended for aftermarket performance applications requiring higher fuel pressures than a typical daily driver. These applications can vary from drag race vehicles, competition-pulling trucks, or high-performance marine applications. For...

🔥 Drop-In Turbo Upgrade – Fits 2003–2007 5.9L Cummins | 5Blade Mafia™ | 525+ HP | Stock-Appearing Upgrade your 2003–2007 5.9L Cummins with this high-performance drop-in turbocharger—engineered for stock-like drivability with hidden power under the hood. Whether you're replacing a worn-out factory turbo, building...