Engineered specifically for performance-tuned and moderately modified 2001 through 2010 Chevrolet Silverado and GMC Sierra 2500HD/3500 trucks powered by the 6.6L Duramax V8 turbo diesel engine (LB7, LLY, LBZ, and LMM platforms), the AirDog Raptor 4G 150 GPH Fuel Lift Pump (Part # R4SBC136) delivers increased fuel volume to prevent high-pressure pump starvation under heavy acceleration and tuning.

Utilizing AirDog's advanced intermediate shaft motor design to isolate fuel from electric components and ensure self-alignment of the gerotor, the Raptor 4G 150 GPH system maintains stable positive pressure without requiring an external return line. This high-capacity pump carries zero core charge.

Key Features & Benefits

• High-Volume 150 GPH Capacity: Provides increased fuel flow specifically tailored for upgraded injectors and performance-tuned trucks.
• 4G Intermediate Shaft Design: Isolates fuel from the motor housing, lowering electrical amp loads and extending pump durability.
• Internally Regulated Operation: Features a built-in adjustable regulator that eliminates the need for separate return line plumbing.
• Frame-Rail Mounting Kit: Includes custom sandwich plate brackets and complete wiring harness for a clean, secure installation.
• Zero Core Charge: Brand-new outright replacement lift pump requiring no core deposit or core return shipping.

Technical Specifications

• Manufacturer / Brand: PureFlow AirDog
• Manufacturer Part Number / SKU: R4SBC136 (RP-4G-150)
• Product Type: In-Line Electric Fuel Lift Pump
• Flow Rate Capacity: 150 GPH (Gallons Per Hour)
• Recommended Application: Performance-tuned and moderately modified trucks
• Truck Compatibility: 2001–2010 GM 2500HD / 3500 Silverado & Sierra
• Engine Platform: 6.6L Duramax V8 Turbo Diesel (LB7, LLY, LBZ, and LMM)
• Core Requirement: None
• Warranty: AirDog Limited Lifetime / Manufacturer Warranty

Vehicle Fitment & Technical Installation Notes

• 2001–2004 GM 2500HD / 3500 Duramax 6.6L (LB7)
• 2004.5–2005 GM 2500HD / 3500 Duramax 6.6L (LLY)
• 2006–2007 GM 2500HD / 3500 Duramax 6.6L (LBZ Classic)
• 2007.5–2010 GM 2500HD / 3500 Duramax 6.6L (LMM)
• Installation Tip: Secure the pump assembly to the frame rail using the supplied mounting plate. Connect the suction line to the factory fuel module port and plumb the pressure side directly into the factory feed line near the frame fuel cooler.