Titanium Signature 165GPH Fuel Lift Pump

Features:

• Supports 600 to 900 horsepower builds
• Delivers 165GPH at 8–10 PSI
• Removes air and vapor from fuel
• 2-micron filtration protects CP4 pump
• Built-in water separator prevents moisture damage
• Mass Flow Return continuously polishes fuel
• Whisper Technology ensures quiet pump operation
• Performance Radius Cuts reduce fuel turbulence
• Ideal for towing and tuned LML trucks
• Uses bolt-on brackets for easy installation
• Includes full wiring harness and hardware
• Limited Lifetime Warranty with registration

Give Your LML The Fuel Support It Truly Needs

When you own a 2015–2016 LML Duramax, you expect it to pull hard, run clean, and stay reliable no matter how you use it. The trouble is, the factory setup leaves the CP4 pump pulling fuel under vacuum, which is a known weak spot when you tow heavy, run tunes, or simply depend on your truck every day. The FASS TSC12165G Titanium Signature Series 165GPH Lift Pump steps in to fix that issue by supplying a steady flow of clean, pressurized fuel that protects the high pressure system from unnecessary stress. You can feel the difference the moment you get behind the wheel, with smoother throttle response and a more confident pull when you lay into the pedal. It removes air, vapor, and debris before they ever reach the injection pump, which gives the CP4 a fighting chance at long term survival. This makes the pump not just an upgrade, but a smart investment if you want to avoid the expensive repairs that LML owners know all too well. Whether your truck is tuned, towing, or gearing up for future modifications, this lift pump delivers the kind of support the LML platform should have had from the start.

Engineered To Deliver Clean Consistent Fuel To Every LML Build

The FASS TSC12165G is built for LML Duramax owners who need a fuel system that keeps up with higher horsepower, heavy work, and demanding conditions. It supplies 165 gallons per hour at a steady 8 to 10 PSI, which is ideal for trucks producing between 600 and 900 horsepower. The system combines a 2 micron particulate filter with a high efficiency water separator to protect the CP4 pump from the contamination and moisture that cause premature failure. Mass Flow Return technology continually recirculates excess fuel through the filters, ensuring the engine always receives freshly polished fuel with improved lubricity. Inside the pump, Performance Radius Cuts help prevent turbulence so air cannot reenter the fuel stream, giving your injection system a more stable fuel supply under throttle. Whisper Technology keeps noise down, which makes the setup feel refined even with its higher flow capacity. With bolt on brackets and a complete wiring harness included, installation is straightforward and fits cleanly on 2015–2016 GM HD trucks. For LML owners who want a fuel system built for reliability and performance, this lift pump offers one of the strongest solutions available.

Fitment: 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Designed specifically for 2015–2016 GM 6.6L Duramax LML engines
• Addresses the lack of a factory lift pump in LML models
• Ideal for tuned, towing, and performance-based applications
• Supports trucks making 600–900 horsepower
• Helps prevent CP4 pump failure caused by fuel aeration
• Improves fuel system reliability and injector lifespan
• Not recommended for stock trucks under low load conditions
• Includes all necessary hardware, filters, and wiring for install
• Limited Lifetime Warranty available with product registration
• CARB compliant for use in all 50 states (EO D-713)
• Recommended filter replacement every 30,000 miles
• Supports future modifications and power upgrades
• Prop 65 warning label