250GPH Adjustable Fuel Lift Pump

Features:

• 250 gallons per hour fuel flow
• Adjustable 1 to 75 PSI output
• Designed for 6.6L Duramax engines
• Fits 2001-2016 Silverado and Sierra HD
• Uses Titanium Signature Series motor
• Boost compensated pressure control
• Maintains pressure at full throttle
• Includes STK-1002 bulkhead kit
• 6061 T-6 billet aluminum bulkhead
• 5/8 inch suction tube included
• PTFE pickup tube customizable length
• Operates safely down to 1/8 tank

Build The Fuel System Your Duramax Actually Deserves

When your 2001-2016 6.6L Duramax starts pushing serious power, the factory fuel supply is often the first thing to fall behind. The FASS FASC09250G 250GPH Adjustable Fuel Lift Pump is built for truck owners who want strong, consistent fuel delivery without guessing if the system can keep up. With 250 gallons per hour on tap, this pump supports aggressive tuning, upgraded injectors, and larger turbo setups with confidence. What really makes it stand out is the fully adjustable pressure range from 1 to 75 PSI, giving you the flexibility to dial in fuel supply exactly where your combination needs it. Additionally, the built in boost compensation port raises fuel pressure as boost climbs, helping maintain steady delivery when you are deep into the throttle. That translates into more consistent pulls, smoother performance under load, and better control over your overall setup. For Silverado and Sierra 2500HD and 3500HD owners who want dependable fueling for both street and competition use, this pump delivers the flow and adjustability to match serious builds.

Engineered For High Flow Stability And Simplified Installation

Behind the performance is the same proven motor used in the Titanium Signature Series pumps, giving this adjustable unit the durability expected in demanding diesel applications. Rated at 250 gallons per hour, it is designed to maintain stable fuel supply to your injection system and help prevent pressure drop during heavy acceleration. The included STK-1002 bulkhead and suction tube kit is machined from 6061 T-6 billet aluminum and functions as both a suction and return point, streamlining your plumbing. With a 5/8 inch suction tube and 1/2 inch return port, it supports strong fuel draw and efficient return flow. Furthermore, the PTFE pickup tube can be trimmed to match various tank depths, allowing a clean and adaptable installation. The updated bulkhead design eliminates the need to cut the filler neck, which helps reduce install time and keeps the process straightforward. When properly installed, the system can safely operate down to about 1/8 tank of fuel, giving you reliable performance without constantly worrying about fuel level during hard use.

Fitment: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Notes:

• Fits 2001-2016 6.6L Duramax only
• Fuel pump only not full filtration system
• Must use factory fuel filter
• Fuel pressure gauge recommended for adjustments
• Boost reference port requires manifold connection
• Adjustable pressure should be set carefully
• Tank access required for bulkhead installation
• Return line routes to included bulkhead
• Intended for performance or competition builds
• Professional installation strongly recommended
• Technical support available for setup questions