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IAG Air Oil Separator AOS For 17-23 Ford F-150 & Raptor 3.5L EcoBoost

IAG Air Oil Separator AOS For 17-23 Ford F-150 & Raptor 3.5L EcoBoost




Our engineers have created an Air Oil Separator system that is as easy to install as possible for the 2017 through 2023 Ford F-150 and Raptor 3.5L EcoBoost. We have developed and included custom injection molded fittings to connect to your Ford’s factory breather ports. These fittings are designed to be plug-and-play with the OEM breather ports, so there's no need for any modifications to the fittings.




IAG now offers the IAG Air Oil Separator for 2017 through 2023 Ford F-150 and Raptor 3.5L EcoBoost. The IAG AOS is an excellent investment to keep your Ford running well. Our AOS design is based on years of extensive research, development and testing. It features a spacious 1-liter cast aluminum swirl pot canister that more effectively separates oil from the PCV system upstream of PCV gasses’ return to the intake system. The heated cast aluminum housing, exceptional venting, and one-of-a-kind baffle design set the IAG AOS apart from the competition. Compatible with all fuel types, our AOS prolongs engine life, enhances crankcase ventilation, and works seamlessly with standard ECU calibrations.


Keeping oil out of the intake is crucial to preventing early mechanical problems and to maintain engine performance. This is especially important for the EcoBoost engines that are prone to oil buildup on the valves. When oil gets into the intake, it coats internal parts like the intake, intercooler, pipes and valves. This can cause premature failure of rubber or silicone hoses, which will eventually cause connections to fail. Upon reaching the intake tract, oil can directly enter the intake manifold and then the combustion chamber of the engine. Once oil reaches the combustion chamber, it can cause detonation and preignition, high emissions, smoke, decreased power, lower gas mileage and even catastrophic engine failure.


The IAG AOS is designed for maintenance-free operation. Unlike conventional catch-can systems, our Air Oil Separators do not require regular draining or upkeep. Once the system is installed, there's no additional maintenance needed. Oil that has been separated accumulates on the inner walls of the AOS canister and gradually flows down by gravity, returning to the engine's crankcase. Our special heating system prevents the collected oil from sludge buildup, ensuring it can be safely reintroduced into the engine. The large volume canister of this Air Oil Separator allows for oil to drain back gradually, eliminating the risk of overflow that smaller catch cans may pose.


The IAG Air Oil Separator incorporates a distinctive baffle system that enables the oil suspended in your engine's PCV gasses to gather and return to the crankcase. Each inlet hose is positioned on one side of the AOS canister, which helps to create a vortex of the gasses inside. As the gasses move within the vortex, they pass through a series of baffles that collect the oil, while allowing the gasses to escape from the top of the AOS. Because the OEM PCV operation is maintained, the engine draws an additional vacuum on the AOS assembly, further eliminating the PCV gasses.


The IAG Air Oil Separator maintains the functionality of the OEM PCV system, while supplementing its capacity. The IAG Air Oil Separator PCV discharge gasses return to the turbo inlet, retaining the OEM PCV valve to draw additional suction, which helps to improve air oil separation. In ethanol-fueled applications, our AOS safeguards against oil dilution and lubrication issues by capturing fuel vapors from the oil and redirecting them into the intake tract for combustion. The IAG AOS provides superior protection against both oil entrainment in the intake flow and oil dilution in the engine's lubrication system compared to the OEM PCV system on its own.

















The IAG Air Oil Separator uses a unique heating system to address a common problem seen in lower-quality catch cans. As hot PCV gasses flow through a cold hose, it creates condensation inside. Over time, this condensation mixes with the oil, leading to sludge formation within the system. IAG has solved this issue by attaching the AOS to the vehicle’s cooling system. This allows heat to be transferred from the engine to the AOS. By heating the AOS body to the same temperature as the engine, the condensation and the associated buildup is greatly reduced or nearly eliminated.

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