The AirDog II‑5G A7SPBD338 DF‑100‑5G is a premium air/fuel separation lift pump system built specifically for 5.9L/6.7L Cummins trucks that demand more than the stock fuel system can deliver. By removing air, vapor, water, and debris while maintaining consistent, adjustable fuel pressure, this system helps protect your injectors and injection pump, supports higher horsepower builds, and improves everyday drivability.
At the heart of the 5G is an integrated diaphragm fuel pressure regulator, giving you a wide adjustment range and stable pressure even under heavy load or boost. The high‑flow design, upgraded wiring harness, and quiet, durable motor technology ensure reliable fuel delivery for tuned trucks, towing rigs, and hard‑working daily drivers alike. If you’re looking to support future performance upgrades and extend the life of your fuel system, the AirDog II‑5G DF‑100 is one of the best investments you can bolt onto your Cummins.
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