AirDog Raptor 4G Fuel Pump 01-10 6.6L GM Duramax LB7/LLY/LBZ/LMM

Is your Duramax ready for a fuel-delivery upgrade that can keep up with the demands of your truck? The AirDog Raptor 4G provides a dedicated frame-mounted fuel supply that delivers consistent fuel flow to the injection system without relying solely on the factory setup. Available in 100 GPH and 150 GPH configurations, you can choose the capacity that best fits your build. The 100 GPH version is intended for stock-fuel trucks, while the 150 GPH system is designed for moderately modified applications, making this a versatile upgrade across the Duramax platforms. The Raptor 4G mounts securely to the frame rail using the supplied sandwich-plate mounting system, with the suction line connecting to the factory fuel module fitting and the pressure side connecting to the factory injection pump feed line near the fuel cooler. Its internally regulated design eliminates the need for a separate return line, keeping the installation clean while providing a consistent fuel supply. Which Flow Rate should you choose? When it comes to upgrading your fuel system, choosing the right GPH (gallons per hour) rating isn’t about picking the biggest number; it’s about matching your pump to your truck’s real-world demands. An AirDog aftermarket fuel system doesn’t just supply fuel; it improves filtration, removes air/vapor, and ensures your injection system gets consistent, reliable pressure. But choosing between 100 and 150 GPH? That’s where a lot of people get stuck. 100 GPH: Stock Reliability Upgrade (STOCK-500 HP) • Perfect for stock trucks or very mild setups. If you want to eliminate factory fuel issues and improve reliability without overbuilding your system, this is the ideal choice. 150 GPH: Daily Driver + Towing Sweet Spot (500-800 HP) • Best for trucks with mild tuning or regular towing. This is the most popular option for owners who want extra fuel capacity without going overkill.