PureFlow AirDog A7SABD526 AirDog II-5G DF-165-5G Fuel Air Separation System

The PureFlow AirDog II-5G DF-165-5G (A7SABD526) is a high-performance fuel air separation (FAS) system engineered specifically for 2004.5–2024 Dodge/Ram Cummins diesel engines. Designed to deliver cleaner, air-free fuel to the injection system, this unit maximizes combustion efficiency, protects expensive fuel injectors, and helps restore lost power and fuel economy.

The AirDog II-5G builds on PureFlow's proven platform with a fifth-generation design that includes an integrated 165 GPH lift pump, delivering a consistent and reliable fuel supply well beyond the demands of even heavily modified Cummins applications. By removing entrained air, vapor, and contaminants before they reach the high-pressure fuel system, the DF-165-5G extends the service life of injectors, CP3/CP4 pumps, and related components.

Key Features:

• 165 GPH flow rate — ample capacity for stock to heavily modified Cummins diesel builds
• 5th Generation design — refined filtration and separation technology for superior air and vapor removal
• Integrated fuel/air separation — removes entrained air, vapor, and contaminants from the fuel supply
• Pre-filter water separator — separates water from fuel before it reaches critical injection components
• OEM-style mounting — direct-fit design engineered for 2004.5–2024 Dodge/Ram Cummins platforms
• Durable construction — built to withstand harsh underhood environments and extended service intervals
• Supports modified engines — ideal for trucks with performance tuning, larger injectors, or compound turbo setups

The AirDog II-5G DF-165-5G is a direct upgrade over the factory fuel delivery system, providing the consistent fuel pressure and cleanliness required for optimal diesel performance. Whether your Cummins-powered truck is stock or built for maximum output, the AirDog A7SABD526 delivers reliable, long-term protection for your entire fuel system.