Elevate your 5.9 Cummins 1998.5-2004 vehicle's performance with the Airdog II-5G A7SPBD253 DF-100-5G Air/Fuel Separation System. Engineered for optimal efficiency, this system features advanced Demand Flow Design for superior fuel flow and pressure. It includes an integrated Diaphragm Fuel Pressure Regulator to minimize aeration and enhance fuel delivery. With its larger ports and robust 12-gauge wiring harness, it ensures reliable, high-performance operation. Enjoy the quiet, dependable performance of the 4G motor technology, all backed by a lifetime limited warranty. Upgrade today for increased engine efficiency and unmatched fuel system reliability!

• Optimize Engine Performance: Advanced Demand Flow Design for superior efficiency.
• Enhanced Fuel Flow: Maintains high pressure for maximum power.
• Cleaner Delivery: Reduces aeration with low flow return.
• Robust Construction: Larger ports and 12-gauge wiring harness for reliability.
• Reliable Operation: Quiet 4G motor technology with lifetime limited warranty.