Titanium Signature Series 100GPH Lift Pump

Features:

• Supports up to 600 horsepower builds
• Delivers 100GPH at 8–10 PSI
• 2-micron filtration protects injectors and CP4
• Removes air and vapor from fuel
• Water separator blocks moisture contamination
• Mass Flow Return constantly polishes fuel
• Whisper Technology keeps pump noise low
• Performance Radius Cuts reduce turbulence
• Ideal for towing and mild performance builds
• Bolt-on brackets for simple, clean installation
• Includes all filters, hardware, and wiring
• Lifetime Warranty with registration through FASS

Stop Trusting Your CP4 To Handle It Alone

If you're running a 2011–2014 LML Duramax and still relying on the stock fuel system, you're gambling with one of the most failure-prone components on the truck. The CP4 injection pump was never designed to pull fuel under vacuum, yet that's exactly what it's forced to do without a lift pump. Over time, air, vapor, and debris get pulled in, slowly wearing out the pump and injectors until you're staring down a multi-thousand dollar repair bill. The FASS TSC11100G Titanium Signature Series Lift Pump is built to prevent all of that by supplying clean, pressurized fuel right where it's needed. It filters down to 2 microns, separates water, and eliminates aeration before fuel reaches the engine. The result is smoother throttle response, better towing performance, and confidence that your fuel system is protected. Whether you're stock or mildly tuned, this is the upgrade that gives your LML the reliability it should have had from the start.

Designed To Stabilize And Clean Fuel On Every Drive

The FASS TSC11100G 100GPH system provides a much-needed solution to a critical flaw in the 2011–2014 LML Duramax fuel system. With no factory lift pump in place, the CP4 is left pulling fuel under vacuum, which creates conditions that lead to air intrusion and poor fuel lubrication. This lift pump addresses those issues by delivering 100 gallons per hour at a steady 8 to 10 PSI, ideal for trucks making up to 600 horsepower. It includes a 2-micron particulate filter and water separator, removing contaminants that standard filters leave behind. FASS’s Mass Flow Return system keeps unused fuel circulating through the filters so your engine only receives freshly polished diesel with every cycle. Inside the pump, Performance Radius Cuts ensure smooth fuel flow and help prevent aeration from being reintroduced. With quiet operation thanks to Whisper Technology and bolt-on installation using factory mount points, this system is built for daily driving, towing, and long-term reliability. For LML owners seeking protection without overbuilding, this lift pump strikes the perfect balance.

Fitment: 2011, 2012, 2013, 2014 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LML

Notes:

• Designed for 2011–2014 GM 6.6L Duramax LML engines
• Specifically addresses known CP4 injection pump issues
• Recommended for stock or mildly tuned trucks up to 600 HP
• Ideal for daily driving, towing, and light performance use
• Helps prevent injector and CP4 pump failure due to aeration
• Not intended for high-horsepower or race applications
• Creates positive fuel pressure to replace factory vacuum feed
• Includes all necessary filters, brackets, wiring, and instructions
• No tuning or ECM recalibration required after installation
• Lifetime Warranty available with product registration
• CARB approved and 50-state legal (EO D-713)
• Recommended filter service interval is 30,000 miles
• Prop 65 warning label