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RADIUM AOS-R, Universal Kit

£337.19 £337.19 Inc. VAT (£280.99 Exc. VAT)

20-0219 – Radium Universal Air Oil Separator-Return (AOS-R)

SKU: RAD20-0219 Categories: , Brand:


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All Radium products are carefully planned with thorough R&D and designed in-house using the latest computer simulation and modeling techniques. Extensive testing and evaluation ensures the performance of Radium products exceed consumer expectations. For these reasons, top motorsports competitors and enthusiasts worldwide rely on Radium Engineering products.

A high powered modified engine tends to generate excessive blow-by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Catch Cans, the AOS (Air Oil Separator) kit is responsible for keeping blow-by oil and other pollutants out of the air intake and intercooler (if equipped) systems. The main difference is that an AOS system returns collected oil back into the oil pan so there is no servicing required.


-In order for the AOS to function properly, a port must be supplied on the engine for the oil to return through.
-The AOS must be mounted high enough in the engine bay so that the port on the bottom is higher than the oil return port on the engine.
-for heating purposes, engine coolant must be routed to the AOS-R to prevent condensation.

-Effectively raises the octane and increases engine performance with cleaner inlet air
-Prevents oil buildup in the intake or intercooler system walls, throttle body, intake manifold, etc.
-Lowers hydrocarbon emissions

-Machined alumium Radium Engineering AOS
-Anodised universal mount that permits 360deg rotation
-Two 5/16″ barbed fittings for coolant lines
-Stainless steel hardware

Top Port: 7/8″-14 threaded for 10AN ORB fittings
Side Port: 7/8″-14 threaded for 10AN ORB fittings
Bottom Port: 7/8″-14 threaded for 10AN ORB fittings
Coolant Ports: 7/16″-20 threaded, includes two 7mm (or 5/16″) barb fittings

AOS Height: 6.94″ (top of dipstick to bottom of AOS)
AOS Diameter: 3.45″ Round
AOS Capacity: 20.3 oz (600mL)Here at Serck Motorsport, we supply and distribute many Radium Engineering products for your race car having used them ourselves!


  • Supplier Description: RADIUM AOS-R, UNIVERSAL KIT
  • Supplier Part Number: 20-0219
  • Supplier: Radium Engineering

Additional information

Weight 1.36 kg


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