AirDog A4SPBD100 100GPH Fuel System for 03-07 Dodge Ram 5.9L Cummins

Vehicle Fitment

• 2003-2007 Dodge Ram 2500/3500 (5.9L Cummins Diesel, RWD/4WD)

Features

• 100 GPH high-flow lift pump designed for Cummins diesel engines
• Removes air, vapor, and contaminants from diesel fuel
• 4G electric motor for reliable and consistent fuel delivery
• Improves injector life by delivering clean, pressurized fuel
• Prevents fuel starvation under heavy load or towing conditions
• Frame-mounted system for clean installation ahead of fuel tank
• Uses factory fuel lines with return-to-tank system integration
• Enhances throttle response and engine efficiency
• Includes integrated filtration and water separation system
• Supports stock and lightly modified engines up to higher power levels

Specifications

• Brand: AirDog (PureFlow)
• Part Number: A4SPBD100
• Fuel Flow: 100 GPH
• Fuel Type: Diesel
• Engine Compatibility: 5.9L Cummins (24V)
• Mounting: Frame-mounted (in front of fuel tank)
• Filtration: 2-micron filtration with water separation
• System Type: Air/Fuel Separation Lift Pump
• Return Style: Fuel return to tank system
• Drivetrain: RWD and 4WD compatible

Included Components

• 1x AirDog 4G lift pump assembly
• 1x Mounting bracket kit
• 1x Complete wiring harness
• 1x Fuel filter and water separator
• 1x Fuel line and fitting kit
• 1x Installation instructions manual

Product Description

The AirDog A4SPBD100 is a high-performance fuel system engineered specifically for 2003-2007 Dodge Ram trucks equipped with the 5.9L Cummins diesel engine. It is designed to deliver clean, air-free fuel directly to the injection system, ensuring optimal combustion and protecting critical fuel components from premature wear.

This system features a 100 GPH flow rate and advanced air/fuel separation technology that removes harmful contaminants such as air, vapor, and water from the diesel fuel. By supplying consistent, pressurized fuel, it improves injector longevity, enhances throttle response, and reduces the risk of fuel starvation under heavy loads, making it ideal for towing and performance applications.

Installation is straightforward with frame-mounted placement and integration into the factory fuel system. The return-style design routes excess fuel back to the tank, maintaining system balance and efficiency. Fitment is confirmed through 2024; 2025 compatibility is not applicable as this system is designed for the 2003-2007 Cummins platform only.