Description
Overview
The FASS No Drop Series Diesel Fuel System (NDTSC15250F220G) is a complete, dedicated fuel delivery upgrade built for the 2020-2023 GM/Chevy Duramax 6.6L supporting builds from 500 to 900 horsepower. This No Drop Kit pairs a Titanium Signature Series Fuel System (TSC15250F220G) with the SK5501 FASS Diesel Fuel Sump Kit, giving you everything required for a clean, straightforward FASS installation—and nothing you don’t need.
Machined from durable 6061 T-6 billet aluminum and finished in black, this system is engineered to filter, condition, and deliver diesel fuel far more effectively than the factory setup. By combining the fuel system and sump into a single package, the No Drop Kit delivers significant savings over purchasing the Titanium Signature Series Fuel System and Sump Kit separately.
Why the “No Drop” Design Matters
The included FASS Fuel Sump eliminates one of the most time-consuming parts of a traditional fuel system install: dropping the fuel tank. With the sump, you can complete the job without removing the tank, drastically simplifying installation while still enjoying all the performance and filtration benefits of the Titanium Signature Series.
Fuel Conditioning & Filtration
This system does more than move fuel—it protects your injection components and improves fuel quality at every pass. It removes over 99 percent of the water from your diesel, eliminates entrained air and vapor, and filters out debris down to 2 microns absolute. By increasing fuel lubricity by at least 10 percent, the FASS system can help triple the life of your injection components while providing far more fuel flow than OEM.
Key Highlights
- Increases fuel lubricity by at least 10 percent
- Can 3x the life of injection components
- Removes over 99 percent of the water from fuel
- Eliminates entrained air and vapor
- Filters debris down to 2 microns absolute
- Provides far more fuel flow than OEM
- Constructed from 6061 T-6 billet aluminum in a black finish
- Includes the SK5501 sump to avoid dropping the fuel tank
Cold-Weather Ready
For those operating in colder climates, Electric Fuel Heater Kits are available to keep fuel flowing smoothly when temperatures drop, adding another layer of reliability to your Duramax fuel system.
Fitment
Engineered for 2020-2024 Duramax Truck/SUV applications and specifically calibrated for the 2020-2023 GM/Chevy Duramax 6.6L in the 500-900hp range. Sold as each, this complete kit bundles the TSC15250F220G fuel system with the SK5501 sump kit for a cohesive, purpose-built upgrade.
Whether you’re chasing improved performance, longer injector life, or cleaner, better-conditioned fuel, the FASS No Drop Series brings proven filtration and delivery technology together in a single, install-friendly package that’s tailored to your Duramax.







