FASS TSUIM250G Titanium Signature Series Diesel Fuel Lift Pump 250GPH Class 8 UIM

The FASS Titanium Signature Series diesel fuel lift pump was engineered to be the top-performing, longest-lasting, and most reliable aftermarket fuel filtration system in the diesel industry. Specifically designed for Class 8 semi-trucks with Unit Injected Mechanical (UIM) engines, this system delivers 250 gallons per hour at 16-18 PSI to support high-performance diesel engines with multiple fueling system upgrades.

Advanced Filtration and Fuel Air Separation:

• 2-micron filtration rating removes dirt, rust, and contaminants
• Built-in water separation filter eliminates over 99% of water in diesel fuel
• Patented air and vapor removal process protects injection systems
• Extends the life of injection pumps and injectors by delivering clean, air-free fuel

Exclusive FASS Technologies:

• FASS Whisper Technology (FWT): Engineered to dramatically reduce pump noise through radius cuts, tighter gear tolerances, and military-spec aluminum coating
• Performance Radius Cuts (PRC): Advanced machining creates smooth fuel flow paths within the aluminum housing, preventing air reintroduction and stagnant fuel pockets
• Mass Flow Return (MFR): Continuously polishes fuel by maintaining positive pressure and returning unused fuel back through the filtration process

UIM-Specific Design:

This model includes compatibility with the oil pressure switch required for Unit Injected Mechanical fuel systems, which ensures the FASS pump only operates when the engine is cranking or running, preventing fuel from being pumped through injectors into cylinders when the engine is off.

Built for Reliability:

FASS systems feature less than 2% motor failure rate and are backed by a comprehensive warranty. Proudly manufactured in the USA with precision engineering that takes extra steps competitors ignore. Ideal for Class 8 applications including Caterpillar C16, Cummins ISX Signature 600, and other high-demand commercial diesel engines.

Note: Class 8 FASS systems require fuel line kits for installation (sold separately). UIM applications require oil pressure switch part number 78143 for proper operation.