II-5G 220GPH Lift Pump

Features:

• Delivers 220 gallons per hour fuel flow
• Supports builds up to 1000 horsepower
• Removes air and vapor from diesel fuel
• Improves throttle response and engine performance
• Mounts using factory frame standoff location
• Includes 5/8 inch fuel tank draw straw
• Direct connection to factory 1/2 inch fuel line
• Returns air/vapor through modified suction line
• Designed for 2011-2014 LML Duramax trucks
• Protects injectors and fuel system components
• Ideal for high-performance or race applications
• Compatible with dual CP3 and big injector setups

Feed Your Duramax The Fuel It Deserves

If your Duramax is making serious power, it needs more than just a factory fuel system to keep up, and that’s exactly where the AirDog II-5G 220GPH Lift Pump comes in. This system is built for high-horsepower builds pushing 1000 HP or more, delivering consistent fuel flow that your engine can count on under load. It doesn’t just move more fuel, it also removes air and vapor, giving your injectors clean, pressurized diesel for better combustion, lower EGTs, and a smoother-running engine overall. Whether you're towing heavy, running compounds, or chasing performance on the strip, this lift pump is designed to keep up. Installation is clean and secure thanks to the frame-mounted cradle bracket and direct factory fuel line connections. It's a must-have upgrade if you're already running big injectors, dual CP3s, or custom tuning. With AirDog, you're not just fueling your build, you’re protecting it.

High Flow Fuel Delivery For Demanding Power Builds

The AirDog A7SABC514 II-5G DF-220 lift pump is a high-capacity fuel system designed specifically for 2011-2014 Silverado and Sierra 2500HD and 3500HD trucks equipped with the LML Duramax. This system delivers an impressive 220 gallons per hour, making it ideal for extreme performance setups that demand reliable fuel supply under wide-open throttle. It features a 5/8 inch draw straw installed in the fuel tank and connects directly to the factory 1/2 inch feed line for streamlined integration. Air and vapor are returned to the tank through the modified factory 12mm suction line, helping to maintain clean, bubble-free fuel at all times. The pump mounts using the factory frame standoff location and includes a cradle bracket for added stability. This setup not only improves engine efficiency and throttle response but also extends the life of your fuel system components by reducing cavitation and pressure drop. Whether you're building for competition or just need reliable fueling under heavy load, this system is built to handle it.

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

Notes:

• Designed for heavily modified trucks over 1000 HP
• Delivers 220 gallons per hour of fuel flow
• Mounts to factory frame standoff near fuel tank
• Includes 5/8 inch draw straw for fuel pickup
• Connects directly to factory 1/2 inch fuel line
• Returns air and vapor to tank via modified suction line
• Removes air and vapor to protect injectors
• Best suited for trucks with upgraded injectors and CP3s
• Designed specifically for 2011-2014 LML Duramax engines
• Check installation manual for full parts list and instructions