Description
Overview
The FASS Titanium Signature Series Plus Fuel System is the next evolution of the popular Titanium Signature Series, purpose-built for the 1998-2004 Dodge RAM Cummins 5.9L diesel. Engineered by FASS Fuel Systems to be a top-performing, long-lasting, and reliable aftermarket lift pump and filtration package, it delivers a massive 250 gallons per hour of clean, air-free fuel to support builds all the way up to 1200 horsepower.
What sets the Plus apart is a genuinely clean, professional installation. It arrives equipped with ORB (O-Ring Boss) fittings, 6061 aluminum black anodized fittings, and black fuel line, so every connection looks as purposeful as it performs. The pump body is machined from 6061 T-6 Billet Aluminum and finished in black, giving you a durable, factory-shaming look under the truck.
Advanced Filtration & Injector Protection
Cummins diesel engines are well known for fuel-related injector failures, and FASS filtration systems are designed specifically to eliminate them. The Titanium Signature Series Plus provides advanced filtration benefits that protect your entire Cummins injection system and extend the life of both the injection pump and injectors. That protection comes from an improved 2-micron filtration rating, a built-in water separation filter, and the patented FASS air/vapor removal process that strips damaging air and vapor from your diesel fuel before it ever reaches the engine.
Key Benefits
- Rated at 250 gallons per hour to feed builds up to 1200 HP
- Operating pressure of 16-18 psi
- 2-micron filtration plus a built-in water separator to guard injectors
- Patented FASS air/vapor removal process for cleaner combustion
- ORB fittings, black anodized 6061 aluminum fittings, and black fuel line for an ultra-clean install
- 6061 T-6 Billet Aluminum body in a black finish
- Backed by a FASS limited lifetime warranty
Fitment
This system is engineered for 1998-2004 Cummins Truck/SUV applications, making it a direct match for the 5.9L Dodge RAM Cummins platform. Whether you’re maintaining a daily-driven work truck or fueling an aggressive high-horsepower build, the Titanium Signature Series Plus scales with your goals while keeping fuel clean and consistent.
Sold as each. If you’ve been chasing reliable fuel volume, cleaner filtration, and a tidy under-truck appearance in one package, the Titanium Signature Series Plus brings all three together for the 1998-2004 Cummins 5.9L. Choose the setup that matches your build and give your injection system the protection it deserves.









