AirDog Fuel Air Separation System for Chevrolet 6.6L Duramax 4G

AirDog Fuel Air Separation System for Chevrolet 6.6L Duramax 4G AirDog FP-150-4G is a precision-engineered fuel air separation system designed for Chevrolet 6.6L Duramax (4G). It removes air and water from diesel fuel, protects your injection system, and delivers consistent fuel pressure for improved performance and reliability. Fitment: Direct fit for Chevy/GMC 6.6L Duramax 4G applications Cleaner fuel: Efficiently separates air and water to prevent cavitation and injector damage Improved reliability: Stabilizes fuel delivery for smoother idle, better throttle response, and reduced stalling Easy installation: Engineered for OEM-style mounting and quick integration with factory fuel lines Durable construction: Heavy-duty components and precision machining for long service life Ideal for daily drivers, towing, and off-road use, the AirDog FP-150-4G safeguards expensive injectors and pumps while maximizing Duramax diesel performance. Backed by AirDog engineering and support, it’s the smart upgrade for clean, reliable fuel delivery.