Description
Overview
The FASS Fuel Systems Signature Series Adjustable Diesel Fuel System is engineered to be one of the most versatile high-performance fuel systems available for the 1994-1998 Dodge Cummins 5.9L 12 Valve. Designed around adjustable fuel pressure, this 290F system delivers 260 gallons per hour and lets you dial in fuel delivery to match the demands of serious high-performance and competition builds. Rated for highly modified applications in the 1200-1500 HP range, it gives you the flexibility to feed your engine exactly what it needs, when it needs it.
Adjustable Pressure, Built for Performance
Manufactured with the same motor used in the FASS Titanium Signature Series systems, this adjustable fuel system offers a wide adjustable fuel pressure range from 1-75 PSI, allowing you to customize fuel delivery for race or competition diesel engines. Whether you’re chasing consistent street manners or maximum output at the track, the ability to fine-tune pressure puts you in control.
To further support performance under load, FASS built in a boost compensation port. Air pressure drawn from your intake manifold raises fuel pressure while under full throttle, helping maintain fuel pressure when it matters most. That means your engine stays fed during the moments that count.
Precision-Machined Components
This kit includes a Bulkhead Fitting and Suction Tube machined from durable 6061 T-6 Billet Aluminum. The bulkhead fitting functions as both a suction tube and return, featuring a 5/8-inch Suction Tube along with a 1/2-inch Fuel Return Port. This is a new and improved version of the previous FASS suction tube design, giving you a cleaner, more capable fuel pickup for your Cummins.
Highlights
- 260 GPH flow rating at 45 PSI, built for high-performance Dodge Cummins 12 Valve applications
- Adjustable fuel pressure from 1-75 PSI to customize delivery for race or competition engines
- Rated for highly modified builds in the 1200-1500 HP range
- Boost compensation port raises fuel pressure under full throttle using intake manifold air pressure
- Uses the same proven motor found in the FASS Titanium Signature Series systems
- Includes 6061 T-6 Billet Aluminum Bulkhead Fitting with 5/8-inch Suction Tube and 1/2-inch Fuel Return Port
Fitment
This Signature Series Adjustable Diesel Fuel System is designed for 1994-1998 Dodge Cummins 5.9L 12 Valve Truck/SUV applications (Part No. FASD10290F260G). Sold as a complete kit, it delivers everything you need to bring adjustable, high-flow fuel delivery to your 12 Valve platform. Choose this system to unlock consistent, customizable fuel pressure built for performance-focused Cummins owners.








