Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
The AirDog II-5G air/fuel separation system reduces air and vapor contamination in diesel fuel to protect injectors and maintain steady fuel delivery. This PureFlow II-5G unit fits 2011–2014 Chevrolet 6.6L Duramax applications and installs inline in the fuel system. By stabilizing flow and limiting vapor-related disruption, it supports consistent engine performance under sustained or heavy-duty use.
PureFlow AirDog II-5G 11-14 Chevrolet 6.6L Duramax DF-100-5G Fuel Air Separation System
